A suspected gunman connected to a quadruple shooting Friday near the campus of the University of District of Columbia (UDC) in Northwest, D.C. was found dead in a nearby building, according to DC Police. One man, two women and a 12-year-old girl were shot, and three of the victims were treated at local hospitals. In a news conference Friday night, DC Police Chief Robert Contee said police believe the alleged shooter died by suicide while officers were entering a fifth-floor apartment where he had set up a "sniper-type setup" with a tripod. Six firearms, including several long guns, and multiple rounds of ammunition, were found inside the apartment. Contee noted that some of the guns may have been obtained legally. READ MORE: https://www.wusa9.com/article/news/local/dc/shooting-connecticut-avenue-nw-dc/65-4c73b56f-0459-4aa9-8d5b-8f48743efd70