A few days after the death of her son, Oliver Tree's mother has addressed the public with a moving message. On Facebook, Christine Begin Nickell shared a childhood photo of the singer and wrote: "Our dear son Oliver, you made this world a better place." She also wrote: "We are so proud of you. Rest in peace."

Former girlfriend Melanie Martinez mourns publicly

Earlier in the week, Tree's former partner, musician Melanie Martinez (31), had said goodbye to him on Instagram. "I was absolutely devastated today", she wrote. "It's truly difficult to comprehend how someone with whom you once shared such a special and formative time of your life can suddenly no longer be here."

She had admired and deeply respected his dedication to art, the singer continued. His ability to lead creatively and take action while maintaining a childlike curiosity and sense of wonder was deeply inspiring. "He had such a gentle heart and was a true artist in every way."

Oliver Tree was among the six fatalities in an accident in which two helicopters collided over Rio de Janeiro on Sunday, June 14. This was reported by the broadcaster "CNN Brasil". The singer-songwriter was only 32 years old.

In the middle of a world tour

Tree was on a world tour at the time of the accident. The next performance was scheduled for July 1 in Lisbon, Portugal. The concert tour was in support of his latest studio album "Love You Madly Hate You Badly".