Secrets From The Grave

A Man Who Cheated Death More Than Once Dies Under Strange Circumstances

(CBS)  This time, everybody believed it really was an accident. But Flint had difficulty finding work while recovering from his injuries. Then, at the end of 2001, Bill Flint got in touch with a man he had met about 20 years earlier, Joel Brock. Brock gave Flint a job at his real estate appraisal company and shortly after that, he moved in with Flint.

But Flint's family and friends thought this old friend was no friend at all.

Brock offered Flint a job at his real estate appraisal company and Flint jumped at the opportunity. Shortly after that, Brock asked if he could temporarily move in with Flint and they became roommates.

But friends would later learn that Brock had met Cassandra years before and that would soon raise some troubling questions.

After three brushes with death, it’s not surprising Flint was suspicious of everyday life.

On the morning of May 3, 2002, Flint went to appraise a house for Joel Brock. At 44, he faced death again for the last time.

Flint was last seen alive when he rushed into a pizza joint desperate for help. Witnesses told Investigator Johnny Bonds what happened.

"He came in, and they could tell he was in distress," says Bonds. "Asked if he could use the restroom. They heard him go in there. They think he threw up. Then he blacked out, passed out and they called an ambulance."

An autopsy determined that Flint had clogged arteries and died of a heart attack. But his friends and family didn’t believe it. "I think that there was foul play," says "Jane." "I think that he was murdered."

It was the way that Flint died that troubled them at first. Witnesses told investigators he was clutching his stomach, feeling like he was burning up.

"Now, that’s not a heart attack," says Liz. "To me, it sounded like being poisoned."

After Flint's death, Cassandra was asked under oath whether she had anything to do with Flint's death, and she swore she did not. Cassandra was living three hours away from Flint -- and Andras had an airtight alibi. At the time Flint died, Andras was in prison for trying to have him killed earlier. They both refused to talk to 48 Hours on camera.

Brock says he never told anyone where he thought "Jane" should live. But Flint's friends and family wondered whether Cassandra and Brock were secret allies and whether he could be part of a deadly plot to help Cassandra get her daughter back.

"I came here today basically to prove that I had nothing to do with his death," says Brock. "Because I never talked to Cassandra. They thought that she and I were in cahoots."

In fact, Brock says he hadn't even spoken to Cassandra in 13 years, not since Flint married her. "I don't believe that I've ever in my lifetime called Cassandra," says Brock. "Ever."