A Dorchester man’s bail on an open case was revoked and an additional bail was set at $200,000 at his arraignment today as an accessory after the fact to the murder of 24-year-old Gregory Phillips, Suffolk County District Attorney Daniel F. Conley said.

Brighton District Court Judge David T. Donnelly revoked COREY PATTERSON’s bail on an unrelated drug and assault case out of Roxbury court, meaning that he will be held even if he posts the high bail set on the accessory charge today, Conley said. Patterson was also charged with three counts each of assault and battery on a police officer and assault and battery with a dangerous weapon – a shod foot.

Assistant District Attorney Paul Treseler said that Patterson (D.O.B. 11/5/86) was arrested just minutes after Phillips was stabbed once in the heart, killing him, during an altercation near the intersection of Harvard and Brighton avenues in Allston shortly before 2:30 Sunday morning.

Treseler said the altercation was between two groups that had just left a Brighton Avenue bar. As the altercation became physical, the combatants went around the corner onto Harvard Avenue. Phillips, a West Roxbury resident, was stabbed during that fight.

In the immediate aftermath of the stabbing, civilian witnesses uninvolved in the altercation “heard a metal object hit the ground” near a vehicle parked on Harvard Avenue.

“That object turned out to be a knife,” Treseler said. “That knife turned out to have blood on it.”

A short time later, Treseler said, witnesses saw a man exit a 2000 Lincoln sedan, pick up that knife, and re-enter the car. The vehicle began to drive away but was slowed by heavy traffic and pedestrian activity. Witnesses directed responding Boston Police officers’ attention to the Lincoln, and officers attempted to empty the car.

Patterson allegedly became extremely combative when officers ordered him out of the car. He allegedly refused to relinquish the knife in his possession and allegedly punched and kicked the officers as he was removed from the Lincoln.

The knife is being forensically tested, Treseler said. The Lincoln was towed from the scene.

“The investigation is focused and very active,” Conley said. “Still, if anyone present at or near the incident has information they haven’t yet shared with police, we urge them to call the Boston Police CrimeStoppers tip line at 1-800-494-TIPS.”

Patterson was represented by attorney Harold Hakala. He will return to court on Dec. 18.