Millionaire Arsonist Who Died in Courtroom Had Canister Labeled 'Cyanide' in His Car

PHOTO: Michael MarinPlayKNXV/ABC News
WATCH Cyanide Found in Car of Man Who Died in Court After Conviction

Arizona authorities have obtained a canister labeled "cyanide" from the car of a businessman who apparently poisoned himself in a courtroom after he was found guilty of arson, although a cause of death has yet to be determined.

The Maricopa County Medical Examiner's Office is awaiting toxicology results to determine what, if any, substances Michael Marin ingested moments after a jury convicted him of burning down his Phoenix mansion.

"The body tells us the story," medical examiner spokeswoman Cari Gerchick said today. "We reserve any kind of determination of cause and manner until everything is complete."

Marin, 53, was convicted June 28 of purposefully burning down his $2.55 million mansion in the tony Biltmore Estates neighborhood of Phoenix after he was unable to keep up with mortgage payments and a plan to raffle his house through a charity fundraiser failed. He faced up to 16 years in prison.

Maricopa County Sheriff Joe Arpaio Tuesday said Marin's son received a delayed email hours after his trial, informing him of how to handle his affairs if things went poorly in court and where to find his car.

Arpaio said at a news conference that records indicated Marin purchased the cyanide powder in 2011 before the start of his trial. He speculated the convicted arsonist made capsules he could swallow in the courtroom from the cyanide powder.

"I don't know what his motive was to go public and allow the whole world to see," Arpaio said at the news conference, ABC affiliate KNXV reported. "He committed suicide in front of the cameras in the courtroom for the whole world to see."

Cameras captured Marin's descent toward death. Moments after the the verdict was read, a seemingly distraught Marin buried his face in his hands and appeared to place something in his mouth.

His face began to turn red. Minutes later, he took a sip of a liquid from a plastic sports bottle, turned to get a tissue, experienced convulsions and collapsed.

He was pronounced dead at the hospital, said Jeff Sprong, spokesman for the Maricopa County Sheriff's Office, which is investigating the death.

Marin, who amassed his fortune working in finance and as a Yale-educated lawyer, set fire to his 6,600-square-foot mansion July 5, 2009, after he was unable to make a $2.3 million payment on his balloon mortgage the following month.

Clad in scuba gear and breathing with an oxygen tank, Marin climbed down a ladder from the second floor of his mansion to escape the fire. His bizarre and harrowing escape made news and made fire officials suspicious.

Investigators determined he had set the home on fire from four different points, using an accelerant. Twenty-eight phone books were also found near packing boxes, which were used as kindling for the fire, according to a report by the Phoenix Fire Department obtained by the New Times.

"The scuba setup was in a ready state when he found it next to his portable ladder stored in his upstairs master bedroom closet," fire Capt. Jeff Peabody wrote in the report.

What wasn't in the Phoenix home also raised suspicions.

The divorced father of four clung to his prized possessions: 18 etchings by Pablo Picasso, which were safe in his Gilbert, Ariz., home at the time of the Phoenix fire.

After the investigation, which also revealed Marin's dwindling assets as a motive for starting the fire, he was arrested and charged with arson of an occupied structure.

"Michael Marin couldn't pay his mortgage, so he burned down his house," Deputy Maricopa County Attorney Chris Rapp said in his opening statements.

He had a taste for living large and was known for his eclectic interests. He was a self-published author. He owned and piloted a Cessna 310, had scaled Mt. Everest, served as a Mormon missionary and later as an executive in Japan.

But it became clear last month that Marin's once-robust social life would be replaced with the prospect of spending up to 16 years in prison.

"We the jury, duly impaneled and sworn in the above entitled action upon our oath, do find the defendant Michael James Marin guilty of arson of an occupied structure," the jury foreman said.

Upon hearing the verdict, Marin appeared to discreetly pop something into his mouth. Minutes later, he was dead.