A suspect wanted in the slaying Monday of 27-year-old Prairieville man in a busy strip mall parking lot during what police have said was a drug deal turned himself in to authorities Saturday.

Glenn Spears, 27, turned himself in without incident after police spent Christmas day hunting for the suspected gunman., Baton Rouge police said. Spears is accused of shooting George Reusch Jr. while the two sat in the victim’s idling Jeep Grand Cherokee in the Esplanade Mall parking lot at Corporate Boulevard and College Drive around 7:20 p.m., said Baton Rouge Police spokesman Cpl. Don Coppola.

Spears, 675 Wooddale Blvd., was booked into East Baton Rouge Parish Prison on first-degree murder, police said in a news release.

A witness reported seeing the Spears’ brothers sitting on a bench near the parking lot and said that after Reusch pulled up, one of the men got into the SUV with Reusch. The witness heard a gunshot and saw the man later identified as Spears, tumble from the car, then get back inside before re-emerging with a bag and running off with his brother.

As the two sprinted away, Reusch’s Jeep — with its mortally wounded driver still inside — rolled into College Drive traffic and collided with a passing silver pickup, police said. An ambulance rushed Reusch to a hospital, where he was pronounced dead.

Glenn Spears’ brother and another accomplice were booked into Parish Prison Christmas Eve on counts of principal to first-degree murder. D’mon Spears, 23, of 675 Wooddale Blvd., Baton Rouge, and Gabrielle Rogers, 25, of 1590 Court St., Port Allen, came with Glenn Spears to meet Reusch for a “prearranged drug transaction,” Coppola said.

Coppola declined to say whether detectives believe Spears planned to rob Reusch or whether the shooting occurred after the planned drug deal turned bad.

Glenn Spears, the suspected shooter, has a lengthy criminal record, including arrests for a number of drug offenses. He was sentenced May 19, 2014, to two years in prison after pleading guilty to possession of Hydrocodone, a prescription painkiller. It’s unclear when Glenn Spears, who was given credit for time served, was released from prison.