“Storage Wars” star Darrell Sheets' final words to his girlfriend were to "go back to bed" before his death in April, according to a police report.

An unnamed woman told Lake Havasu City Police detectives that Sheets got out of bed late one night after experiencing insomnia and asked her to return to sleep, standing in the doorway of his office. Shortly after, she reported hearing a single gunshot.

The girlfriend also recounted in the report that Sheets had had a "verbal" argument with his son, Brandon Sheets, at their Arizona home over "family drama." She alleged that Darrell received an angry text from his daughter-in-law that left him "sad and upset," and that he was "devastated" and "sad as hell" following the visit with his son.

In a 911 call obtained by TMZ, the reality TV star’s girlfriend stated, "I think he just killed himself. Yeah. Darrell." She clarified to the dispatcher that she had not seen anything and did not want to look.

Visibly shocked, she told the operator, “I can’t believe it. I know he’s been just frustrated with this no sleep and his kids. Terrible, terrible.”

Detectives located a handwritten suicide note inside a closet following Sheets' passing. The note, which the report described as having "shaky" writing, read, “I could not take anymore the Facebook bullying, f—k you [redacted].”

Sheets was found dead on April 22 from a self-inflicted gunshot wound to the head. The Mohave County Medical Examiner’s Office confirmed in May that his death was a suicide.

Castmates Laura and Dan Dotson claimed Sheets had been living in fear of alleged cyberbullying prior to his death. Sergeant Kyle Ridgway confirmed to Page Six that cyberbullying accusations are "part of the active investigation."

Brandon Sheets, who appeared on the series with his father from 2010 to 2017, posted an emotional tribute on Instagram, writing, “My heart is so broken….I love you Dad and I will do my best to live in your honor and respect our Family.”

If you or someone you know is affected by any of the issues raised in this story, call the National Suicide Prevention Lifeline at 800-273-TALK (8255) or text Crisis Text Line at 741741.