FORT COLLINS, Colo. (AP) — A Colorado State University student was out celebrating her 22nd birthday in the hours before being fatally shot by her boyfriend, an Air Force staff sergeant stationed in Wyoming.

Savannah McNealy's friend, Hannah Foster, told the Coloradoan that McNealy and Sgt. Michael Zamora had been in a romantic relationship. Investigators say Zamora killed McNealy, 26-year-old Tristian Kemp of Destin, Florida, and wounded another woman before killing himself early Thursday outside an apartment complex near CSU.

Colorado State University officials say McNealy had been celebrating her birthday.

City police chief Terry Jones has said the victims were ambushed after they were dropped off at the apartment complex by a ride-sharing service. Zamora, a Fort Collins native who was stationed at F.E. Warren Air Force Base near Cheyenne, Wyoming, was not part of the ride-sharing group.