Summary
The FBI is offering a $50,000 reward for information leading to the arrest and conviction of the gunman who killed UnitedHealthcare CEO Brian Thompson.
The gunman, who arrived in New York City on November 24th, shot Thompson on December 4th outside a hotel hosting an investor conference.
Investigators believe the gunman, who concealed his identity with a mask, fled the city on a bus, leaving behind a backpack in Central Park.
The comment you replied to was referring to this particular murder in that last sentence. If NYPD have some evidence that the shooter fled across state lines, that is likely the justification for the FBI to get involved .