Late singer Oliver Tree's body returned to US after helicopter crash

American singer-songwriter Oliver Tree, who died at age 32 in a helicopter collision over Rio de Janeiro, has had his remains transported back to his home state of California. The crash, which occurred last week and killed seven people total, happened when two helicopters collided while Tree was in Brazil during his world tour following a São Paulo performance. His family announced plans to establish a charitable foundation according to wishes Tree had documented in his will prior to his death.