In the late evening hours of Friday, September 1, 2023, a shooting shattered the quiet of a Sterling, Virginia neighborhood, leaving a young man dead. Just after 10:30 p.m., deputies from the Loudoun County Sheriff's Office were dispatched to the 21000 block of Stanford Square following reports of gunfire. Upon their arrival, they discovered 18-year-old Alex Omar Cartagena Jr. suffering from gunshot wounds. Despite the immediate life-saving efforts of the deputies and emergency medical services, Alex was pronounced deceased at the scene.
The investigation into the death of the young Sterling resident was swift. Detectives, deputies, and crime scene personnel worked tirelessly to identify who was responsible for the tragic loss of life. Their efforts led them to another teenager from the same community. On the afternoon of Sunday, September 3, 2023, at approximately 1:20 p.m., authorities arrested 18-year-old Jaylin E. O'Brien of Sterling.
Jaylin E. O'Brien was taken into custody and is facing serious charges in connection with the death of Alex Omar Cartagena Jr. The charges filed against him include second-degree murder, attempted second-degree murder, and two counts of the use of a firearm in the commission of a felony. Following his arrest, O'Brien was transported to the Loudoun County Adult Detention Center, where he is being held without bond. The investigation into the circumstances surrounding the shooting remains ongoing, and authorities have encouraged anyone with information to come forward to assist in the case.
