Amid manhunt for UnitedHealthcare CEO's shooter, NYPD divers return to Central Park lake in search of clues

NEW YORK -- The NYPD searched the lake in Central Park again Sunday, hoping to recover evidence linked to last week's murder of UnitedHealthcare CEO Brian Thompson in Midtown Manhattan.

As the manhunt for the gunman continues, officials said on Sunday they're narrowing their search.

The latest images released of the person of interest police are looking for show him in the backseat of a taxi, still with his mask on, and another shows him just outside of the cab. The FBI released a poster highlighting a $50,000 reward for information leading to an arrest.