A Casper man is heading to prison after admitting to kidnapping his girlfriend.

Twenty-seven year old Camden Lawlis was sentenced to serve eleven to eighteen years at the Wyoming State Penitentiary, after pleading guilty to charges of kidnapping, aggravated assault, aggravated burglary and property destruction.

According to Casper police, in May, Lawlis entered his girlfriend’s house through a window, then struck her and choked her.

When she attempted to escape, investigators say Lawlis caught her, forced her into his vehicle and started driving.

She was eventually able to escape and called police.

She was taken to the hospital to be checked on because she was pregnant with twins, and told officers that Lawlis is the father.

Another person told investigators that he was with Lawlis earlier, before the incident, and that he and Lawlis had been drinking.

While in jail, prosecutors say Lawlis wrote letters to the victim, trying to get her to change her story, but the defense says that was done out of his own fear, for what would happen to him.

Lawlis has at least one prior felony conviction.