LOWELL -- Less than four hours after he turned himself into police, the suspect in last Thursday's triple shooting on Chelmsford Street was ordered held without bail on three charges of armed assault with intent to murder.

In Lowell District Court Tuesday, Leroy Mey, 21, of Lowell, was also charged with discharging a firearm within 500 feet of a building and carrying a firearm without a license.

Prosecutors said Mey shot at a car driving away from the BP gas station near the intersection of Chelmsford and Hutchinson streets, after a miscommunication arose in a drug deal.

Three men in a Mitsubishi were shot as the car drove away. Two were transported to Boston Medical Center and are still hospitalized, though their conditions were unknown Tuesday, according to prosecutors.

The parties involved in the shooting were known to each other, police said.

Police released Mey's name, photo and description on Friday. At least one victim had identified him from a selection of photos presented by police, prosecutors said.

Mey turned himself in just after 8 a.m. Tuesday, a day after his older brother was in court on multiple illegal gun possession charge said to be related to the shooting.

"We're grateful to have Mr. Mey in custody because we deemed him a serious threat to the community based on his actions last week," Police Superintendent Taylor said. "He was definitely a dangerous individual and we're glad that he's in custody."

Mey's brother, Sydney Mey, was arraigned Monday in Lowell District Court and held on $5,000 bail. He was charged with carrying a firearm without a license, possession of ammunition with a firearms identification card, possession of a large-capacity firearm, and carrying a loaded firearm without a license.

A woman who called police about Sydney Mey's guns and ammunition said she believed he was holding them for his brother a day after the shooting. Taylor said police couldn't verify that the guns and ammunition were Leroy Mey's.

Leroy Mey will next appear in court for a Jan. 3 hearing.

For more on this story, see Wednesday's Sun or visit http://www.lowellsun.com.