Authorities need your help in finding the killers of 17-year-old Maggie Long. The Park County Sheriff's Office believes that Maggie Long was set on fire and burned alive December 1, 2017.

Authorities are looking for three suspects that spent a lot of time with the young girl. Click here to take a look at the sketch.

The case remains under investigation. CBI, ATF, and the FBI Denver Division will continue to assist the Park County Sheriff’s Office with the investigation. Dozens of DNA samples have been collected. A $50,000 reward is being offered for information leading to the arrest and conviction of the people involved in this heinous crime, please call 303-239-4243.