Early Sunday morning cops responded to a call of shots fired on S. Rosehill Street. Upon arrival, they were led to an abandoned house where the body of the undercover officer Edward Rosario was found. He'd been shot three times. Police identified three suspects: Darnell, Alexis, and Anthony, who are considered armed and dangerous. Police also identified a fourth person of interest, Robert Rosario, the slain officer's brother. Robert was suspected of alerting the other suspects to his brother's undercover status. At the time of his death, officer Rosario was investigating a drug ring. The alleged killers operated in this area of Hancock and Cambria from 1959 until the present day.