Evidence of Jenelle Evans' drug abuse has been captured on camera, and was recently shared online.

Evans' ex-fiance, Gary Head has reportedly sold a video of Evans to the press. The Teen Mom star was filmed in the summer of 2012, where she is shown bending over a counter and snorting a white powdery substance, according to Radar Online.

"Jenelle was on probation at the time and she bought pills from a drug dealer and crushed them up," a source said, according to the report. The source added that Evans did not have a prescription for the pills.

Evans, who was 20 at the time, is shown in a tie-dyed T-shirt with her blonde hair pulled up on top of her head, snorting Percocet.

According to the insider, her behavior would change dramatically when using drugs.

"She could be really violent when she didn't get her way and throw temper tantrums," the source said, based on the report. "But when she snorted the drugs she was really mellow and zoned out."

The source said that Evans knew any traces of Percocet would be out of her system in just 72 hours, which was handy for any probation ordered drug tests, so that's why she did the prescription pills and not harder drugs. 

The video came out just after Evans spoke out for the first time about her latest split from Head.

Tags: Jenelle Evans video drugs