An Ascension Parish jury found a Prairieville man guilty of manslaughter in a shooting death at a family Good Friday crawfish boil in 2013.

Robert Cosey, 48, who shot and killed his wife’s cousin, Shedrick Diggs, had originally been booked on second-degree murder, said Tyler Cavalier, spokesman for 23rd Judicial District Attorney Ricky Babin.

Diggs, 42, was at the March 29, 2013, crawfish boil at his cousin’s house when Cosey woke up from a nap inside the home and got into an argument with his wife’s family members, Cavalier said in a news release.

Cosey walked outside to his vehicle and returned with a semi-automatic gun, Cavalier said.

Diggs approached Cosey in an attempt to calm him down, and Cosey responded with a gunshot to Diggs’ chest.

When Ascension Parish Sheriff’s deputies responded, they found Diggs suffering gunshot wounds and lying on the driveway in front of the house at 17128 Richmond Drive, Cavalier said.

Diggs died from his injuries at the scene.

Cosey fled but was apprehended a short time later by East Baton Rouge sheriff’s deputies, Cavalier said.

Judge Alvin Turner Jr. deferred sentencing pending a pre-sentence investigation, Cavalier said. Cosey faces up to 40 years in prison.