The man who died after jumping off a bridge in Bellemont, Arizona, on Monday was identified the following day by the Arizona Department of Public Safety (DPS) as Isaac Kappy. He was a former actor who appeared in movies such as “Thor,” "Terminator Salvation" and "Beerfest."

DPS spokesman Bart Graves told Arizona Daily Sun on Tuesday that Kappy jumped off a road bridge landing on the Interstate 40 – a major east-west highway running through the south-central position of the United States – before being fatally hit by a pickup truck. "We don't know why Mr. Kappy took his own life," Graves said.

Investigators added that two teenagers who witnessed Kappy standing on the road bridge landing jumped out of their vehicles and tried to physically restrain him from doing so, but failed. No one else was injured in the incident and the investigation was closed.

The former actor wrote an extensive apology in an open letter posted on his Instagram account, hours before he killed himself. In it, he talked about “some stark revelations” he had discovered about his own character that made him aware that he had “not been a good guy." He added he had used people, owed money, dealt drugs and “abused” his body with vices like narcotics, cigarettes and alcohol.

He also made reference to the “Q movement,” started by a group of far-right conspiracy theorists, saying he had “brought shame upon the greatest military operation of all time.” A direct reference to President Donald Trump was also made in his post. “I have told people in the Trump administration that I am willing to admit to my many crimes in a public setting, and committed to execution, in a public setting. A nation cannot suffer its traitors, and I am no exception,” he wrote.

Kappy was 42 years old at the time of his death and had quit acting to become a prominent alt-right conspiracy theorist in recent years. His last role was in a 2016 episode of “Rachel Dratch’s Late Night Snack.” According to his IMDB page, he also appeared in the TV series “Breaking Bad,” and the reality show “Vanderpump Rules.”

He was also the lead singer of the band Monster Paws. The band paid tribute to the former actor in a Facebook post. “MP forever Issac. I’ll miss you homie,” the band wrote.

In August 2018, Kappy made headlines for the wrong reasons. It was reported that he allegedly assaulted model and actress Paris Jackson during a game night party. According to TMZ, she moved out of her house and amped up her security over fears of more attacks from him. 

Jackson said at the time that after Kappy tried to choke her, he continued to send her texts that read like ramblings of an unhinged person. She added she initially replied to his messages because she feared he was suicidal and wanted to be supportive. Later, however, the actress blocked his number.

Around the same time, Kappy accused actor Seth Green and his wife of being pedophiles. “The time it really hit me hard…we went over there, playing mafia, it’s a role playing game that we play and at the end of the night, it was me, Seth and his brother-in-law, and Seth turned to me and opened up the secret bookshelf, and he’s like, ‘this is where we keep the children,’” he said in a video he posted online.

He also wrote threatening letters to the couple, in which he said he loved them but would only continue his “goodwill” toward them if the love was reciprocated.

“I think you would agree that it would be extremely foolish of me to blindly trust that my goodwill goes both ways. So, in the interest of self-preservation, I have implemented a series of triggering events, should I meet an untimely demise…but the good news is, it will never happen if the goodwill is mutual,” he wrote.

If you have thoughts of suicide, confidential help is available for free at the National Suicide Prevention Lifeline. Call 1-800-273-8255. The line is available 24 hours, every day.