Q13 FOX News reporter
12:47 AM EDT, October 2, 2012
Family and friends held a memorial Monday for 12-year-old Jackson Roose, who accidentally hanged himself on the family's backyard zipline last week.
A memorial was held in Harman Park in Redmond. (Watch the video)
The tragic death occurred at the family's home in the 8800 block of 255 Ave. NE in Redmond about 2:30 p.m. Wednesday, King County sheriff's spokeswoman Cindi West said.
Jackson was believed to have been riding his bike, but his mother spotted his bike in the yard and went to look for him. It was then she found him hanging from the zipline.
The family had a zipline installed on its property that was about 20 feet long and about 20 feet above the ground. King County detectives said the zipline appeared to be commercially made and installed.
Medics responded to the scene but were unable to revive Jackson. He was pronouced dead at the scene.
West said the accident was "tragic all around."
"The family are the most positive people I've ever met in my life," said family friend Jort Visser.
Ingrid Visser said Jackson was recently at her home for her son's birthday party and that he was full of life. "We are going to miss him," she said.
The cause of the accident is not known. Detectives are investigating whether the helmet Jackson was wearing became hung up or another line used to sit in while ziplining became entangled.
The zipline was removed from the home by detectives for the investigation.
Jackson was a student at Evergreen Middle School. He has three other siblings.