A merican singer Oliver Tree died on Sunday after two helicopters collided mid-air in Brazil. He was 32. The crash happened Sunday morning in Recreio dos Bandeirantes, a suburb west of Rio, France 24 reported. One helicopter had five people on board, including Tree. The other carried only the pilot. Both aircraft fell into the parking lot of an electric car dealership and caught fire. No one survived. Police said Tree was listed on the passenger manifest. The six victims were badly burned, so officials are still confirming identities. Also on Tree’s helicopter were a Brazilian music producer, an Argentine video director, and Argentine YouTuber Gaspar Prim, known as “Gaspi”. The fire spread to about 20 electric cars. Firefighters said lithium battery fires burn hotter and release toxic smoke, making them harder to put out. Burger King worker Thamires Santos, 27, said she heard a loud explosion that shook her shop. “Helicopter parts were flying everywhere,” she said. Fire service spokes...