Carolina Monsanto was 16 when she was shot and killed in Allentown, Pennsylvania, on the afternoon of July 31, 2018. She was at a friend’s house on Harrison Street with two companions — a 19-year-old man and a 31-year-old woman — when the woman’s boyfriend, Antwan Washington, entered and a domestic dispute escalated. Washington reportedly retrieved a firearm from an upstairs bedroom, returned downstairs and opened fire on all three people. Carolina suffered multiple gunshot wounds and died at a local hospital; the two other victims were wounded but survived.

Authorities identified 36-year-old Antwan Washington as the suspect and he was sought as armed and dangerous until he turned himself in on the evening of August 2, 2018. He was arrested and charged with one count of homicide in Carolina’s death, two counts of attempted homicide and two counts of aggravated assault, and was held in the Lehigh County Jail without bail. Carolina was a rising senior at Dieruff High School who ran track, played field hockey, and worked two jobs.

If anyone knew Carolina or was at the Harrison Street residence that day, please share information that might help piece together what happened.