Jenelle Evans is using social media to harass Nathan Griffith's latest ex and alleged domestic violence victim. 'Teen Mom' ...

Teen Mom alum Nathan Griffith was arrested in Las Vegas this week. Jenelle Evans' ex was accused of battery by strangulation.

The 'Teen Mom 2' alum also invited Nathan Griffith to stay in their 10-year-old son's room after he was arrested for domestic violence.