One of six Ascension Parish men charged in the 2013 drug-related killing of a man in Baton Rouge pleaded guilty this week to armed robbery and attempted murder charges and was sentenced to 27 years in prison.

Aaron Hargrove, 21, of Prairieville, who was charged with second-degree murder in the slaying of 22-year-old Jared Christopher Vincent and attempted second-degree murder in the wounding of Vincent's roommate, pleaded guilty to armed robbery and attempted second-degree murder.

Investigators have said Demarcus Daniel James, 23, and Avery Gene Honea, 19, both of Prairieville, Ivan Wess Graham, 21, and Bryton James Montelaro, 21, both of Gonzales, and Hargrove went to Vincent's town house on Ridge Pecan Drive in Baton Rouge intending to steal money and drugs from him.

James, who is accused of fatally shooting Vincent, and Honea are scheduled to stand trial Nov. 28 on second-degree murder charges. State District Judge Mike Erwin, who sentenced Hargrove, is presiding over the case.

James, according to the East Baton Rouge Parish Sheriff's Office, went into the town house alone the morning of Dec. 11, 2013, and Honea and Hargrove stood watch outside while Graham and Montelaro waited inside a vehicle.

After hearing gunshots erupt inside the residence just south of Burbank Drive between Bluebonnet Boulevard and Gardere Lane, Hargrove and Honea fired shots at Vincent's fleeing roommate, who was shot in the back, the Sheriff's Office said.

James, armed with a pistol, came out of the house suffering from several gunshot wounds. He fled the scene with several of the other men, who dropped him off at a hospital outside of East Baton Rouge Parish, the Sheriff's Office reported. Detectives later picked James up at another hospital and arrested him.

Hargrove, who claimed the men went to Vincent's town house to buy drugs, admitted he shot Vincent's roommate but said he did so because he thought he saw a gun in the man's hand, prosecutor Dana Cummings said Tuesday.

Hargrove was 19 at the time of the shooting and would have faced a mandatory sentence of life in prison if convicted of second-degree murder.

"I am relieved that reason prevailed on the part of everyone involved and we are particularly grateful to the family of the victim for their graciousness," Hargrove's attorney, Bo Rougeou, said Wednesday.

Graham and Montelaro, who are charged with second-degree murder, are due in court Nov. 28 for a status conference.

A sixth man, Patrick Anderson, 23, of Prarieville, is charged with obstruction of justice. He is due in court Nov. 3 for a status conference.

Follow Joe Gyan Jr. on Twitter, @JoeGyanJr.