50 people, including the gunman, are dead in the worst mass killing in U.S history. A gunman opened fire in the nightclub popular with gay people Sunday morning, and the death toll could climb as 53 people were wounded. The gunman, a 29 year old, was killed in a battle with police. Vigils were held in a number of Canadian cities last night, including Regina and Saskatoon. Saskatchewan Premier Brad Wall sent a note of sympathy to the victims and families through social media.