Federal Judge Refers Philadelphia DA Larry Krasner to DOJ over Handling of Murder Conviction Appeal

# What happened A federal judge investigating a habeas petition for Dennis Johnson has referred Philadelphia District Attorney Larry Krasner and a senior prosecutor to the Department of Justice. The referral followed an evidentiary hearing called to examine how Krasner's office handled Johnson's bid to overturn his 2009 second-degree murder conviction.

# Why the case drew extra scrutiny

• Johnson was sentenced to life in prison and maintained his innocence through appeals. The case reached federal court under Judge Paul Diamond.
• In 2022, the prosecution's response shifted after a new attorney in Krasner's federal litigation unit, Jaclyn Mason, submitted a brief recommending Johnson's conviction be overturned.
• Mason had prior legal experience in patent and trademark law but no criminal litigation background. She said she received almost no training before taking the case.

# Flawed brief and internal reaction When other experienced prosecutors reviewed Mason's brief, they found "significant errors" that undermined the argument for overturning the conviction. Supervisors sought to withdraw the brief—an admission of serious error—but Mason refused to sign onto a withdrawal and resigned, saying her supervisor, Matthew Stiegler, had largely framed the brief.

Stiegler, according to colleagues, told others Mason must have "purposefully inserted false facts" and proposed searching her past work for mistakes to support a narrative that Mason had gone "rogue." Supervisors declined that plan.

# Krasner's role in the dispute

Krasner was also described as avoiding official email, preferring personal accounts for work that might later be discoverable. He warned of "consequences" for staff who pushed the transfer.

# Judicial response and next steps

# What to watch

• Whether the Department of Justice opens a criminal investigation into Krasner and the named subordinate.
• Any formal charges or grand jury activity related to alleged false statements, obstruction, or conspiracy.
• The status of Dennis Johnson's habeas petition and any further judicial rulings on the underlying conviction.

# Bottom line A federal judge concluded that internal handling of a habeas brief in Krasner's office involved serious procedural and factual problems. Testimony suggests coordination to blame an inexperienced attorney rather than acknowledge office mistakes. The judge's referral to the DOJ marks a formal escalation that could lead to criminal inquiry into prosecutors' conduct.