Randy Pittman’s phone rang Monday night with a frantic request from the caller on the other end.

Gregory Johnson said he needed his roommate to hurry to Josephine and Brainard streets to pick him up.

According to a police report, when Pittman arrived at the corner about 7:30 p.m., Johnson, 52, grabbed something out of the silver Mercedes-Benz and moments later unleashed a quick volley of bullets on three teens, killing 14-year-old Miquial Jackson and wounding his 15-year-old brother.

Pittman then drove Johnson to their home, police said.

While it is not clear whether Pittman, 49, knew in advance what Johnson allegedly intended to do, police said there is no question he was aware of the shooting, then knowingly helped an alleged killer evade arrest.

“At no time did the arrested subject notify the authorities of the incident or his involvement before, during and after the shooting,” police wrote in their report.

Miquial, an eighth-grader at ReNEW Cultural Arts Academy, died about 10 p.m. Monday at Interim LSU Hospital from a gunshot wound to his head.

Officers arrested Pittman about 11:40 p.m. and booked him with three counts of being an accessory to attempted first-degree murder.

They found him at the home in the 2200 block of Baronne Street that he shared with Johnson. By that time, however, Johnson was gone.

Police said Pittman drove Johnson to the home and watched as Johnson gathered up some belongings and made his escape.

Johnson remained at large Wednesday.

Police have obtained a warrant for him on one count of first-degree murder and two counts of attempted first-degree murder.

Pittman, meanwhile, remained jailed on a $750,000 bond.

Police have not said what led to the shooting, only that Johnson was “fussing” at the teens moments before he began to chase them and allegedly fired upon them.

During a candlelight vigil at the corner Tuesday night, relatives urged Johnson to surrender and wondered how someone could open fire on a group of teenagers, especially a child a small as 5-foot-1 Miquial.

“Please turn yourself in,” pleaded Griffin Eleby, Miquial’s great-uncle, as he stared into television cameras. “You’re a grown man. He was a boy.”

Anyone with information on Johnson’s whereabouts is asked to contact Crimestoppers at (504) 822-1111.

Follow Danny Monteverde on Twitter @DCMonteverde.