MTV's 'Teen Mom' star Jennelle Evans was involved in a road rage incident where she pulled out her gun during the incident. TMZ squired the video that show Jennelle driving down the highway with her son in the front seat when she suddenly slams on her brakes almost getting into an accident. The clip then shows her on the phone with 911 explaining that there was a driver who was tailing, then cut infant of her and slammed on the breaks almost running off the road. The clip then cuts to where it appears Jennelle is in a parking lot maybe rolling the other driver, as she reaches from here gun holster and placing it by her side and between the seat and middle compartment. Then the video cuts to her verbal exchange of her and the other driver and at one point it seems to hit her car while they are arguing which made Jennelle pull out her gun, all while her son was sitting in the passenger seat. Check out the video below from TMZ.