Oliver Tree Among Six Dead in Rio Helicopter Collision

American singer Oliver Tree was among six people killed when two helicopters collided over Rio de Janeiro; one helicopter crashed into the parking lot of a car dealership, sparking a fire. Tree was listed on the passenger manifest but his body had not yet been identified. Argentine YouTuber Gaspar Prim Diaz, known as Gaspi, and several others were also killed as investigators probe the cause. Tree, known for viral videos and a world tour that included a June 6 show in São Paulo, had tributes from figures like KSI, Steve-O, and DJ Diplo.