- Helicopters collide over Rio de Janeiro, killing 6 Toronto Star
- 6 people killed after helicopters collide in Brazil CBC
- Oliver Tree, “Life Goes On” and “Miss You” Singer, Dies in Helicopter Crash at 32 The Hollywood Reporter
- Oliver Tree, ‘Alien Boy’ and ‘Life Goes On’ Musician, Dies at 32 Yahoo News Canada
- Singer Oliver Tree Dead at 32 After Helicopter Crash in Brazil TMZ