Samwel Uko's uncle says he recently found out his nephew visited the Regina General Hospital not once, but twice on the day he died. The second time, he was escorted out by security just a couple of hours before he was found dead in Wascana Lake. The 20-year-old from Abbotsford, B.C., was in Regina visiting an aunt when he died on May 21. Justin Nyee, Uko's uncle from…