The following from the Local Voices of Malibu where an interview was done with his mother, sister and former law enforcement officer. ..his father at the time.

There is one thing all of the people I interviewed are adamant about – especially those closest to him and knew every detail of where he was physically, emotionally and financially at the time of his death.

They do not believe, under any stretch of the imagination, Bennington committed suicide.

“I don’t believe Chester killed himself. If he did… I am convinced someone coerced him to do it, or worse…” – Susan Eubanks, mother of Chester Bennington
The law enforcement response – or lack thereof – specifically a thorough on-scene investigation at Bennington’s Palos Verdes Estates home on July 20th, 2017, is the most serious cause for concern in Bennington’s death.

The rushed, initial assessment of suicide by the lead officer on scene (and according to the incident report without a the presence of a suicide note), caused the wheels of justice for the Bennington family to immediately come to a grinding halt.

Officer Aaron Belda the lead officer and first on-scene made a definitive and seemingly deliberate decision to label Bennington’s death as a suicide, based on the visual circumstances and inside of 11 minutes. In turn, the decision to call the fire department and the chaplain without even conferring with homicide detectives immediately excluded the possibility of investigating potential foul play at the scene of Bennington’s death.

See more in here,
https://thelocalmalibu.com/exclusive-missing-links-the-unanswered-questions-in-the-death-of-linkin-park-front-man-chester-bennington-part-1/