LAFAYETTE — A 28-year-old Lafayette man turned himself in Monday in the investigation of a fatal stabbing at a 12th Street barbershop Thursday night, police said.

Anthony St. Julien was booked on one count of second-degree murder in the death of Damien Watkins, also 28, Lafayette police said.

Police have said that the stabbing occurred after Watkins entered 12th Street Fades and began arguing with another man Thursday evening.

Detectives have yet to develop a clear idea about what sparked the argument, said police spokesman Cpl. Paul Mouton.

“We are still trying to figure that out,” he said.

Mouton said detectives have interviewed eyewitnesses to the incident.

Two men were arrested last week on charges of illegal discharge of a firearm for what police believe was retaliation for Watkins’ death.

The men allegedly fire shots from inside a vehicle while in the area of Magnolia Street and Pinhook Road, but no one was injured.

Police responded to the stabbing at 8 p.m. Thursday, and the shots were reported about 90 minutes later.

Mouton said no additional arrests are expected at this time.

St. Julien turned himself in without incident Monday after police had secured a warrant for his arrest in the case, according to a police news release.

St. Julien’s bail is set at $250,000.