Andreotta was killed shortly after the events at My Lai, on April 8th he was serving as the door-gunner aboard the OH23 helicopter 62-03813, along with Crew Chief Spc. Charles Dutton and pilot Lt. Barry Lloyd.
Andreotta was killed shortly after the events at My Lai while serving in the "Warlords", B-Company of the 123rd Aviation Battalion in the Americal Division. On April 8th he was serving as the door-gunner aboard the OH23 helicopter 62-03813, along with Crew Chief Spc. Charles Dutton and pilot Lt. Barry Lloyd.