Amelia Laguerre, 33, was fatally shot on March 31, 2022, in the underground parking garage of her workplace in New Hyde Park, New York. A mother to a young son, Laguerre had worked at Northwell Health for about a decade. Authorities say the shooter lay in wait and ambushed her as she entered the garage, firing nine times; she was taken to a nearby hospital and died of her injuries.

Investigators identified her ex-fiancé, 33-year-old Quay Sean Hines of Bay Shore, as the suspect. The relationship had reportedly been on-again, off-again for years and became increasingly abusive after Laguerre tried to end it; reports say Hines stalked her and allegedly broke into her apartment and burned her clothes. Hines was arrested on April 8, 2022, and charged with second-degree murder and two counts of criminal possession of a weapon.

What details about the days before March 31 might help explain how Hines was able to wait in the garage undetected?