Alexis Anderson was 15 when she was found dead from a gunshot wound to the head on the night of June 18, 2014, in an abandoned home on 106th Road near 180th Street in the Jamaica neighborhood of Queens. Authorities said the building was occupied by squatters and known for drug activity.

The case shifted after the city medical examiner ruled the death a homicide. Prosecutors say Alexis’s 20-year-old boyfriend, Amin Abdullah, first told detectives she had shot herself, then later admitted he shot her in the head with a revolver. A witness in another room reported hearing a popping sound between 11:00 p.m. and 11:43 p.m., then saw Abdullah and Alexis together before they discovered her body.

Abdullah was arrested and charged with murder and criminal possession of a weapon. Does anyone have information about Alexis, the abandoned house, or that late-night argument?