Insurance Exec Killer May Have Fled New York, Police Say

The New York Times reported that the words 'delay' and 'deny' were written on shell casings found at the scene (Credit: AFP)

New York police said Friday they believe the man suspected of gunning down a top health insurance executive may have fled the city on a bus following the brazen daylight murder.

The development deepens the mystery surrounding the fresh-faced suspect, an image of whom was released by investigators Thursday and who has now been on the run for almost three days.