The 22-year-old Russian man who beat his ex-girlfriend while she was on a FaceTime call with Barron Trump was convicted of assault in London on Wednesday. The first son immediately called British police after witnessing the dustup between Matvei Rumiantsev and his former beau, which happened more than a year ago. Rumiantsev, who admitted he was jealous of his girlfriend’s friendship with Trump , was convicted of assault. “This view lasted maybe one second and I was racing with adrenaline,”