Data analyzed by the CBS News Crime Unit shows at least 50 law enforcement officers have been shot in ambush attacks so far this year.

Wagner died Thursday after being shot in an ambush attack. Two other officers were wounded, with one suffering serious injuries.

The funeral for Lorain Police Officer Phillip Wagner, who was shot in Lorain while on a lunch break with fellow officers, has been announced.

Lorain Police Officer Brent Payne, who was shot in an ambush along with two of his fellow officers, has been released from MetroHealth Medical Center, according to the Lorain Police Department. Payne and officers Phillip Wagner and Peter Gale were shot Wednesday at the end of River Bend Drive near Colorado Avenue.

A vigil outside the Lorain Police Department has grown steadily since Wednesday, when three officers were shot in an ambush-style attack.