A 20-year-old Slidell man turned himself in to authorities earlier this month for allegedly hiding a killer at a New Orleans safe house after a gunshot slaying of an immigrant worker last year, authorities said.

Bryon Rene Cousin, 151361 W. Lawn Drive, walked into the St. Tammany Parish Sheriff’s Office in Slidell Sept. 9 and was booked on a charge of accessory after the fact for the April 29 murder of Salvadorian immigrant Carlos Louis Martinez-Carpio, Sheriff’s Office spokesman Capt. George Bonnett confirmed Friday.

An arrest warrant was issued the day prior, Sept. 8, for Cousin after he allegedly helped Edric Cooper, a former Slidell High School classmate, flea Slidell for roughly a week after the Martinez-Carpio’s murder. The 36-year-old immigrant was slain during a botched robbery attempt as he cooked dinner in a trailer at 35591 Madison St. Martinez-Carpio and six other immigrants from Honduras, El Salvador and Mexico lived together in the trailer while they worked Hurricane Katrina restoration.

Many were in the back eating and weren’t injured when gunmen stormed the trailer and shot Martinez-Carpio, who armed himself with a kitchen utensil to no avail.

Cooper was accused of being the mastermind behind the plot to rob the immigrants and served as a lookout alongside Grant Gethers, 19, of New Orleans.

Gethers and another co-defendant, Jace Washington, 20, of Slidell, face second-degree murder charges at upcoming trials.

In August, Glenn Carter, a fourth man involved in the robbery scheme and the alleged gunman, was convicted of second-degree murder in Martinez-Carpio’s death after 14 hours of jury deliberation. He was sentenced to life in prison, mandatory under Louisiana law.

Court officials, lawyers and spectators all said it was the longest jury deliberation in recent memory.

Later that month, Cooper, also charged with second-degree murder, opted for a plea deal. He pleaded guilty to manslaughter and was sentenced to 40 years in prison.

The Sheriff’s Office remained tight lipped on Cousin’s case Friday because it is an ongoing investigation. Others, Bonnett said, may also be charged with accessory after the fact for helping Cousin hide Cooper at the New Orleans east safe house. Bonnett did not elaborate.

Carter, Cooper, Washington and Cousin all knew each other from high school, Bonnett said.