Blayn Jiggetts, 19, a.k.a. "Bliz," of Mount Vernon, New York, was arrested yesterday in Harlem at approximately 11:50 p.m. by Massachusetts State Police assigned to the Middlesex District Attorney's Office, Cambridge Police, and detectives from the New York City Police Department Manhattan North Homicide Unit. Jiggetts was arrested on a Massachusetts warrant charging him with first degree murder, accessory after the fact of murder, armed robbery, and possession of a firearm. He will appear this morning in Manhattan Criminal Court at 100 Center Street, Manhattan, and be charged as a fugitive from justice.

Jabrai Jordan Copney, 20, of New York City, New York, had previously been arrested in connection with the murder. Copney was arraigned on May 22 in Cambridge District Court on charges of murder, accessory after the fact to murder, and possession of a firearm. He was ordered held without bail.

"We allege that this defendant and two others arranged to meet Justin Cosby over drugs with the intent to rob him, and then ultimately shot and killed Justin during the course of that confrontation," District Attorney

Leone said. "We now have two of the three suspects in custody. This fluid investigation is developing well, with a focus on anyone else who may have had involvement in this incident. We expect truthful and complete cooperation from anyone with helpful information."

According to authorities, on Monday, May 18, at approximately 4:48 p.m., the Harvard University Police responded to the Kirkland House located on Dunster Street in Cambridge on reports of shots fired. Cambridge Police were also notified and responded to the scene.

Cosby, suffering from an apparent gunshot wound to the abdomen, had left the Kirkland House and ran to the intersection of Dunster Street and Mount Auburn Street, where he collapsed. He was transported to Beth Israel Hospital and was pronounced dead at approximately 4 a.m. on May 19.

Massachusetts State Police assigned to the Middlesex District Attorney's Office, Cambridge Police, and Harvard University Police began an investigation into the circumstances of the shooting.

Based on that investigation, it was determined that the Copney, Jiggetts, and a third suspect, none of whom were students at Harvard University, arranged for a meeting with Cosby for the purpose of robbing Cosby. The three men met Cosby in a common area inside the Kirkland House and, during the course of the confrontation, multiple shots were fired. One of those shots struck Cosby, resulting in his death.

Copney, Jiggetts, and the third suspect involved fled the scene and returned to New York City on a bus from Boston that evening.

This investigation is ongoing into the circumstances of the shooting, as well as into any others who may have been involved in, or know about the circumstances of this incident.