LIVINGSTON, La. -- A man accused earlier of obstructing the investigation into the disappearance of a 13-year-old girl now faces a charge of killing the seventh-grader.
Mark Sterling Lewis, 39, was booked Saturday with second-degree murder, the Livingston Parish sheriff said. He already was being held in lieu of $500,000 bond on the obstruction of justice charge.
The murder charge was filed after the state police crime laboratory found evidence in Lewis' vehicle tying him to the death of Kaitlin Aydell, of French Settlement, whose body was found partially submerged in a remote bayou on Feb. 3, said Stan Carpenter, the sheriff's chief of detectives.
Carpenter would not discuss the evidence.
"We can't get into that," Carpenter said. "We are not going to put that out. All I can say is that we found evidence to substantiate that charge."
Livingston deputies booked Lewis on Feb. 2 with obstruction after accusing of giving false information to detectives questioning him about the girl's whereabouts following her disappearance. She was last seen on Feb. 1, leaving a school bus and walking toward home, authorities said.
An autopsy determined that Aydell had been strangled.
For the past two years, Lewis a mobile home in the rear of the victim's residence. He is related by marriage to a relative of the victim, investigators said.
Authorities said Lewis was convicted of kidnapping a woman in 1995 and served two years in prison.
A bond hearing on the murder charge was pending.
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