Update, 12:30 p.m.:

Glenn Spears, 27, turned himself in to police authorities Saturday without incident, Baton Rouge police said. Spears is accused of shooting George Reusch Jr. on Dec. 21 in the parking lot of 5110 Corporate Blvd.

Spears will be booked into East Baton Rouge Parish Prison and charged with first-degree murder, police said in a news release.

Original story:

Baton Rouge police spent Christmas hunting for the suspected gunman in the slaying Monday of 27-year-old Prairieville man in a busy strip mall parking lot during what police say was a robbery during a planned drug deal.

Glenn Spears, 675 Wooddale Blvd., shot George Reusch Jr. once about 7:20 p.m. Monday while the two sat in the victim’s idling Jeep Grand Cherokee in the middle of the Esplanade Mall’s parking lot at Corporate Boulevard and College Drive, said Baton Rouge Police spokesman Cpl. Don Coppola.

Two suspected accomplices — one being the brother of the suspected shooter — were booked into Parish Prison on Christmas Eve on counts of principal to first-degree murder. Gabrielle Rogers, 25, of 1590 Court St., Port Allen, and D’mon Spears, 23, of 675 Wooddale Blvd., Baton Rouge, both drove with 27-year-old Glenn Spears to meet Reusch for a “prearranged drug transaction,” Coppola said.

Rogers told one witness she’d driven the two brothers to the parking lot “to conduct a robbery” of Reusch, a Baton Rouge police report says.

Coppola declined to say whether detectives believe Glenn Spears planned to rob Reusch or whether the shooting occurred after the planned drug deal turned bad. Rogers denied any knowledge of a plan to rob Reusch, the report says.

Shortly before Monday’s shooting, a witness saw the Spears brothers sitting on a bench near the parking lot, apparently waiting for Reusch. After the victim pulled into the parking lot, the witness said, one of the men, later identified as Glenn Spears, climbed into Reusch’s SUV, which pulled away from the bench toward the middle of the parking lot.

Just minutes later, the witness, who asked not to be identified, heard a single gunshot, then saw the assailant tumble from the car before climbing back in. Glenn Spears re-emerged from the car with a backpack and took off running with his brother toward Corporate Boulevard, according to the police report.

As the two suspects sprinted away, Reusch’s Jeep — with its mortally wounded driver still inside — began rolling toward College Drive, picking up speed and crashing through a chain-link fence and into traffic, where it collided with a passing silver pickup.

An ambulance rushed Reusch to a hospital, where he was pronounced dead shortly after arrival.

Coppola said Thursday detectives were still trying to establish how well Reusch might’ve known his killer and the other suspects. Coppola declined to say what drugs were involved in the transaction or whether detectives believe Reusch was the buyer or seller in the planned deal.

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 for prison.

D’mon Spears has also been arrested a number of times — twice with his older brother, including the time Glenn Spears led police on a high-speed chase in 2013 — but it does not appear the younger Spears has ever been convicted of a crime.

D’mon Spears did not talk to reporters as police officers walked him from Louisiana State Police headquarters to a waiting patrol car Thursday evening for the trip to Parish Prison. Rogers also didn’t answer questions from reporters as officers escorted her past waiting TV cameras and a newspaper photographer but, through tears, she asked an officer twice, “Why are they taking pictures of me?”

Rogers also had her 5-year-old child in the car as she drove the two brothers to and from the scene of Monday’s homicide, Coppola said, leading to an additional count of contributing to the delinquency of a minor. Coppola said the child is now with the woman’s family.

Reusch, an electrician and bodybuilder known as “Kees,” leaves behind a fiancée and a baby son. A native of Houston, Texas, Reusch moved to Prairieville as a teenager and attended Dutchtown High School.

Glenn Spears is wanted on counts of first-degree murder, armed robbery and illegal use of a weapon. Anyone with information on this incident is urged to contact the Baton Rouge Police Department’s Violent Crimes Unit at (225) 389-4869 or Crime Stoppers at (225) 344-7867.