What we know 

    Investigators believe the man sought in connection with yesterday's shooting of UnitedHealthcare CEO Brian Thompson may have traveled to New York City from Atlanta by bus last month, law enforcement officials told NBC News.

    Police in New York City today released two new photos of a person of interest as the manhunt for the masked gunman continues.

    "Deny," "defend" and "depose" were written on shell casings at the scene, a senior New York City law enforcement official said.

    The gunman bought a water bottle and two protein bars from a nearby Starbucks before the shooting and discarded the items, according to a senior New York City law enforcement official.