The Concordia Parish Sheriff’s Office is working to extradite a Clayton man in the slaying of his wife and her son over the weekend.
The bodies were discovered Sunday.
An assault weapon was used in the double homicide.
Concordia Parish Sheriff's Office (CPSO) Chief Deputy David Hedrick said Marvin Anthony Watson, 211 Anderson St., Clayton, accompanied by his lawyer, turned himself in at the Adams County Sheriff Office on Sunday.
Hedrick said Watson is fighting extradition from Mississippi to Louisiana.
The 54-year-old Watson has been charged with two counts of first-degree murder in the deaths of Meghan McCoy Watson and her son at 211 Anderson Road in Clayton. Hedrick declined to name the juvenile victim. The child was a junior high student.
Hedrick said the CPSO is going through the legal avenues to have Watson extradited.
CPSO Investigator Chris Groh said Watson allegedly shot Megan McCoy and her son using an AR-15. The shootings took place at approximately 11:45 p.m. Saturday.
A family member called the CPSO Sunday to report the shooting and deputies found both victims unresponsive.
"By the time we got the report, the alleged shooter and his attorney were at the Adams County Sheriff's Office," Groh said.
Groh said Watson has been out on probation after pleading guilty in 2015 to a manslaughter charge in Natchez.
“This is very tragic and we're asking everyone to keep this family in their prayers,” Hedrick said.