@themanilatimes: Oliver Tree, Argentine YouTuber among six dead in Rio helicopter crash American singer Oliver Tree was among six people killed when two helicopters collided over Rio de Janeiro on Sunday, local police said. Surveillance footage on Sunday captured the moment a helicopter fell from the sky following a collision in Rio de Janeiro. The aircraft crashed on grounds leased by an electric car dealership, which aggravated the fire due to the vehicles' lithium batteries, said fire brigade spokesperson Fabio Contreiras. Argentine YouTuber Gaspar Prim, known as Gaspi, was also among the dead, authorities said. TV BANDEIRANTES / SOCIAL MEDIA