A US gunman shouted at children to leave his son's birthday party at a Texas roller rink as he fatally shot his estranged wife and four of her relatives, before then killing himself, police and witnesses say. Police said the couple had been having ongoing marital problems that investigators believe led to the shootings about 7pm on Saturday at Forum Roller World in Grand Prairie, about 30 kilometres west of Dallas. No young children or rink employees were killed. Some... (GunPolicy.org)