Doug Feldman’s resume gave no clue that a mass killer was lurking inside him.

He graduated from a prestigious university, was a financial wizard, and was the funniest man in the room at social functions. Everything appeared to be going his way.

But beneath Feldman's calm exterior, a volcano was swelling inside him. First, there were tremors. Then, a deadly eruption against random strangers.

Security Camera Footage of Mass Killer Doug Feldman Riding A Harley As He Randomly Guns Down A Gasoline Tank Truck Driver

Crime Scene Where A Tank Truck Driver Was Randomly Murdered by Mass Killer Doug Feldman

Feldman cruised around Dallas on his Harley Davidson motorcycle, randomly shooting truck drivers to death. His reasons for the murders are beyond comprehension.

A month after Feldman was sentenced to die in the Texas death chamber, he sat down to talk with investigative reporter Robert Riggs.

It is a rare glimpse into the mind of a mass killer because they usually take their own lives at the end of their rampage.

Mass Killer Doug Feldman Interviewed by Robert Riggs On Texas Death Row

At the beginning of the interview, Feldman told Riggs that most of what he had to say would not make any sense.

And he was right.

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