The family of Christine Arnold has raised $3,000 to offer as a reward for information that leads to the arrest of her killer.

Christine was found dead in her car on July 18, 2011, in Gary, after crashing through a chain-link fence. She died after being beaten and stabbed and officials believe the car was accelerated through the fence by a third party.

She had been seen in Michigan City earlier on the day she was killed with a man police have not been able to identify. Investigators are seeking the man as a person of interest.

To submit an anonymous tip with information about Christine’s killer, visit www.MichianaCrimeStoppers.com, the Crime Stoppers Facebook page or call 800-342-STOP or 574-288-STOP.