Sherry Scheel Matteucci, a former United States Attorney for the District of Montana
passed away on June 11, 2026. She was 79. Her career included major federal prosecutions, leadership within the state bar, and long-standing service to the legal profession.

Matteucci served as U.S. Attorney for the State of Montana from 1993 to 2001 after
being appointed during the Clinton administration. During her tenure she oversaw
several nationally watched matters involving federal law enforcement in Montana,
including the prosecution of members of the Montana Freemen and coordination related
to the Unabomber case after Theodore Kaczynski’s arrest in the state.

She graduated from the University of Montana School of Law in 1979 and went on to
practice with the Billings, Montana firm Crowley, Haughey, Hanson, Toole & Dietrich,
where she became a partner before entering federal service. After stepping down as
U.S. Attorney in 2001, she began a private law firm concentrating on mediation and
conflict resolution.

Beyond her work as a federal prosecutor, Matteucci was known for breaking barriers in
Montana’s legal community. She became the first woman to serve as president of the
State Bar of Montana and later received major professional honors, including the State
Bar’s William J. Jameson Award, its highest honor.

Robert (Bob) Bishop Fiske Jr., a longtime member of NAFUSA and respected trial lawyer, died on December 4, 2025, at his home in Darien, Connecticut. He was 94. Fiske served as United States Attorney for the Southern District of New York (1976 –1980) and later became the first prosecutor appointed to investigate the Whitewater matter. During his long legal career, he was also known for his success as a white collar defense counsel.

Fiske’s career spanned public service and private practice at the highest levels of the
American legal profession. Known for his composure, independence, and courtroom
skill, he earned a reputation as a prosecutor who pursued difficult cases with discipline
and fairness.

Fiske graduated from Yale University and the University of Michigan Law School. He
began his legal career at Davis Polk & Wardwell in 1955 before joining the United
States Attorney’s Office for the Southern District of New York as an Assistant U.S.
Attorney from 1957 to 1961. He returned to that firm between holding positions with the
federal government.

In 1976, President Gerald Ford appointed Fiske as U.S. Attorney for the Southern
District of New York. In that role, he personally tried major organized crime, drug
trafficking, and corruption cases. He also became a mentor and close friend to Elkan
Abramowitz, his criminal division chief, and to Mary Jo White, a future U.S. Attorney
who had worked under him. White praised both his legal skill and his clear sense of
“what the right thing to do is.” Fiske served as Chair of the Attorney General’s Advisory
Committee during his tenure as U.S. Attorney.

Among Fiske’s best-known victories was the prosecution of Harlem drug trafficker Nicky
Barnes, widely known as “Mr. Untouchable,” whose conviction followed earlier failed
efforts to hold him accountable. Fiske also helped secure convictions in other prominent
organized crime and corruption matters, reinforcing his reputation as a meticulous and
determined courtroom lawyer.

In 1994, Attorney General Janet Reno appointed Fiske special prosecutor to examine
matters connected to Whitewater, the failed Arkansas land venture involving Bill and
Hillary Clinton before Bill Clinton became president. Although his tenure in that role was
brief, his appointment drew praise across party lines because of his reputation for
integrity and nonpartisanship.

Among other accolades and leadership roles, Fiske was a president of the American
College of Trial Lawyers and the Federal Bar Council. He believed in the value of
government service and established the Fiske Fellowship at the University of Michigan
Law School to support Michigan Law graduates pursuing careers in public service.

The Federal Bar Council held a celebration in New York City on June 22, 2026,
honoring his 70-year legal career.

Fiske is survived by his wife, Janet Tinsley, whom he married in 1954, and their children
Linda Fiske, Robert Fiske III and Susan Williams; five grandsons and one great-
grandson.

Ralph B. Guy, Jr., a respected figure in the American legal community, former U.S.
Attorney for the Eastern District of Michigan, and founding member of NAFUSA, passed
away on April 20, 2026, at the age of 96. A 1953 graduate of the University of Michigan
Law School, Guy had a distinguished legal career in his home state of Michigan and
was known for his dedication to public service and commitment to justice. Guy served
as U.S. Attorney for the Eastern District of Michigan from 1970 to 1976, where he
played a pivotal role in prosecuting federal cases and upholding the law. His tenure was
marked by a steadfast pursuit of fairness and integrity in the legal system.

After his time as U.S. Attorney, Guy continued to serve the public with distinction. He
was appointed by President Gerald Ford as a United States District Judge for the
Eastern District of Michigan where he served from 1976 to 1985 and later appointed by
President Ronald Reagan to the United States Court of Appeals for the Sixth Circuit
where he served from 1985 to 1994. He later served as a judge of the United States
Foreign Intelligence Surveillance Court of Review from 1998 to 2006. Throughout his
career, he was recognized for his judicious temperament, keen legal insight, dry sense
of humor and unwavering professionalism. He placed great emphasis on and
participated in the education of law students and the improvement of lawyers’ legal
skills. He found time in his busy schedule to teach trial advocacy courses at the
University of Michigan Law School, the National Institute for Trial Advocacy and the
United States Attorney General’s Advocacy Institute. Colleagues and friends remember
him as a mentor and a trailblazer who set high standards for those who followed in his
footsteps.

Robert (Bob) Mueller, who was renowned for his steadfast dedication to public service
and his pivotal role as the former Director of the FBI, passed away on March 20, 2026,
at the age of 81. He leaves behind a legacy that shaped American law enforcement and
justice. Mueller, a long-time NAFUSA member, had a distinguished public service career
and earned high military honors in Vietnam as a Marine Corps officer, including a
Bronze Star for valor.

Mueller began his long career with the Department of Justice (DOJ) in 1976, later rising
to its top ranks. He served as an Assistant United States Attorney in San Francisco and
later Boston, for twelve years. He returned to government service in 1989 after working
as a partner in a Boston law firm, to serve as an assistant to Attorney General Dick
Thornburg. In 1990, he was appointed Assistant Attorney General for the Criminal
Division, holding this post until 1993, during which time he oversaw the investigation of
the Lockerbie bombing case and the prosecution of Manuel Noriega. He was appointed
U.S. Attorney for the Northern District of California in 1998 where he served until 2001
when he was nominated by President George W. Bush to be FBI Director. He was
sworn in on September 4, 2001, after unanimous confirmation by the U.S. Senate, a
week before the September 11 terrorist attacks. Mueller served as Director of the FBI
until 2013, including an additional two years beyond his ten-year term at the request of
President Obama. During this time, he focused on transforming the FBI into an agency
that could ably respond to terrorist threats while preserving the civil liberties of American
citizens. Many considered him to be the most influential Director since Hoover. He had a
reputation for being gruff, but his leadership, discipline and professionalism were
evident in each role, earning him widespread respect for his unwavering commitment to
upholding the rule of law.

Mueller’s influence within the Department of Justice was marked by his quiet strength,
meticulous attention to detail, deep sense of responsibility and dedication to public
service. He is survived by his wife, Ann, daughters Cynthia and Melissa and five
grandchildren.

Timothy Leonard, former U.S. Attorney and federal judge in Oklahoma, and former NAFUSA member, passed away on March 2, 2026, leaving behind a legacy of integrity and dedication to justice. He was 86. Leonard was renowned for his commitment to public service, having served both as a U.S. Attorney and later as a judge for the United States District Court for the Western District of Oklahoma (1991-2026). His decades-long career was marked by his unwavering pursuit of fairness, service to his country and his many contributions to the legal community. Throughout his tenure, Leonard was known for his mentorship of young attorneys and his involvement in various civic initiatives.

He attended the University of Oklahoma on a four-year track scholarship and while there the OU tack team won three Big 8 Championships. He joined the U.S. Navy Judge Advocate General’s Corps after graduating OU law school and attained the rank of Lieutenant Commander. After his military service, he returned to Oklahoma to practice law and in 1979 was elected to the Oklahoma State Senate, where he served as minority leader. He was appointed by President George H.W. Bush to serve as U.S. Attorney in 1989.

Colleagues and friends remember Leonard not only for his professional accomplishments but also for his kindness and humility. His life is the subject of Tim Leonard, Son of the Panhandle, written by Bob Burke and Joe Heaton. He is survived by his wife Nancy to whom he was married for 58 years, his three children- Kirstin, Ryan and Tyler, their spouses and nine grandchildren.

The legal community was saddened to learn of the recent passing of Joseph Hartzler who
led the prosecution team following the 1995 bombing of the Alfred P. Murrah Federal
Building in Oklahoma City. He died on December 18, 2025, at the age of 75. NAFUSA
members who toured the Oklahoma City Memorial during the 2024 Annual Conference will
recall that the bombing claimed 168 lives and injured many more. Hartzler, who was at that
time an Assistant U.S. Attorney in Springfield, Illinois, submitted his name volunteering to
assist with the case to then Attorney General Janet Reno, who later named him to lead the
prosecution team investigating the bombing. Hartzler and the assembled team of
prosecutors secured the conviction of Timothy McVeigh, who committed the deadliest
domestic terror attack to that time in American history. After a two-month trial, McVeigh
was convicted of 11 counts of murder and conspiracy. He was sentenced to death and
executed in 2001.

Hartzler attended American University Washington College of Law where he met fellow
classmate Lisa Harms. They married in 1981 and together they had three sons, Alex, Adam and Matthew, all of whom were the joy of his life. Hartzler was diagnosed with multiple sclerosis in 1988, but he refused to let the disease slow him down, and he led the
successful McVeigh prosecution from a wheelchair. He is survived by his wife, three sons
and their wives, and five grandchildren.

His son Matthew paid tribute to his father recalling that the successful prosecution of
Timothy McVeigh provided a measure of justice to the victims and their families. He added
that his father’s role in the trial was “… a watershed moment for disability visibility…in an
era when disability was often hidden, he navigated the federal courthouse in front of a sea
of cameras, challenging national perceptions of capability in his motorized scooter.”

Patrick “Pat” Ryan, former U.S. Attorney for the Western District of Oklahoma during the
Clinton Administration and former NAFUSA member, passed away unexpectedly on
September 18, 2025, while vacationing with family and friends in Aruba. He was 79.
Pat is remembered as the U.S. Attorney during the Oklahoma City bombing prosecutions
and for his work with both the prosecutors in those cases and with the survivors and
families of the victims of that deadly bombing. He was also well known for wearing his
signature cowboy hat during the months he spent in Denver attending the trials of Timothy
McVeigh and co-conspirator Terry Nichols, who were convicted for their roles in the
bombing of the Murrah Federal Building in Oklahoma City on April 19,1995. Pat, who was
sworn in as U.S. Attorney in June 2025, shortly after the bombing, said he wore his white
cowboy hat to remind the people back home in Oklahoma that, “Ok, we’ve got a guy there
who’s from Oklahoma, who is one of us, who is fighting for us.” Pat served as U.S. Attorney
until October 1999.

Pat received his J.D. from the University of Oklahoma in 1969 and then served four years in
the United States Air Force, including two years as the Chief Military Justice for Southeast
Asia from 1972 to 1974. At the time of his death, he was a Director of the law firm Ryan
Whaley Attorneys in Oklahoma City.

A flag is being flown over the Department of Justice in his honor. His cowboy hat is on
display at the Oklahoma City National Memorial & Museum.

Former NAFUSA member Patrick H. NeMoyer passed away on May 17, 2025, at his home in Orchard Park, New York, after a long illness. He was 72. During his long legal career, he served as Erie County Attorney, and a state appeals judge with the 4th Appellate Division in Rochester, New York, in addition to serving as the U.S. Attorney for the Western District of New York. He was nominated by President Clinton in 1993 and, after Senate confirmation, went on to serve as U.S. Attorney until 1997, when he stepped down to run for a seat on the State Supreme Court (Appellate Court). He presided over a wide range of cases there for the next 26 years. He was named Western New York Judge of the Year by the State Trial Lawyers Association in 2006.

Those who knew Judge NeMoyer remarked on his incredible intellect. He was a member of the Mensa Society. His wife of 47 years, Elyse, commented, “He loved the law. He was a very cerebral guy who enjoyed the intellectual challenges presented by the law.” She went on to say that he even enjoyed the boring parts of the law. He also loved politics and was active in Democratic Party politics before he became a judge. While U.S. Attorney, Judge NeMoyer was proud of the role his office and the Buffalo FBI office played in the investigation that led to the arrest and conviction of Timothy McVeigh, a western New York native, for his role in the 1995 Oklahoma City terrorist bombing. NAFUSA member Denise O’Donnell, who was First Assistant under NeMoyer and who later succeeded him when he stepped down to become a judge, remembers Judge NeMoyer as “…an extremely kind and decent man that you could go to for good, solid advice.”

In addition to his wife, Judge NeMoyer leaves four daughters, Erin, Caitlin, Amanda and
Rachel and four grandchildren. A flag was flown over the Department of Justice in his
honor.

Jessica Aber, who served as the U.S. Attorney for the Eastern District of Virginia for most of the Biden administration died in her home in Alexandria, Virginia, on March 26 of natural causes. She was 43. The news of her death greatly shocked and saddened her family and many friends in the U.S. Attorney and Department of Justice community. Her friends and colleagues were “heartbroken” to learn of her passing.

Ms. Aber, a career federal prosecutor, took office in October 2021, after being nominated by President Biden and unanimously confirmed by the Senate. She resigned from that position in January 2025. She was known for prosecuting high-profile cases involving organized crime and national security. U.S. Attorney Erik Seibert, who currently heads that office, remarked that “[Ms. Aber] was unmatched as a leader, mentor, and prosecutor, and she is simply irreplaceable as human being.”