We don’t know what was used, but KD said it was a thin ligature consistant with a zip tie or ‘zap strap’. There are a few examples of people killed with them, this article is recent:
“Mysteries remain in strange case of man strangled with a zip tie in La Grange
When Silva learned her brother was strangled with a zip tie, she immediately thought of the woman he was dating in 2008, who also was found dead with a zip tie around her neck.
[…]
Ultimately…the girlfriend’s death was classified a suicide.
After her brother’s death, Silva questioned if detectives in the former girlfriend’s case got it wrong and if her death and Kope’s could be connected.
“That was one of the things that really stood out for us,” said Stanislaus County Sheriff’s Office Detective Jesse Tovar. “It did raise some red flags for us.”
But after detectives read reports in the former girlfriend’s case, it appeared to be a coincidence, said Tovar, who investigates cold cases and took over Kope’s case last year.
[…]
Investigators concluded Kope’s death couldn’t have been a suicide due to several factors, but primarily how tightly the zip tie was cinched around his neck. It would have been very difficult for Kope to achieve that on his own, Tovar said.”
Michelle Silva believes her kid brother would want her to stop trying to learn the details of his death in La Grange seven years ago.
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