Elizabeth Vargas

A classic sociopath, says psychiatrist Dr. Edward Halliwell of the Halliwell Centers in New York and Boston.

A classic sociopath, says psychiatrist Dr. Edward Halliwell of the Halliwell Centers in New York and Boston.

That observation is confirmed in the confession of getaway driver Steve Champagne.

That observation is confirmed in the confession of getaway driver Steve Champagne.

And it gets worse. Champagne says Bart also talked about wanting to finish the job and kill his father.

And it gets worse. Champagne says Bart also talked about wanting to finish the job and kill his father.

then I am what I am. Dr. Halliwell has never examined Bart Whitaker, but also sees a narcissistic personality.

then I am what I am. Dr. Halliwell has never examined Bart Whitaker, but also sees a narcissistic personality.

Finally, in September 2005, the climax in a long string of unsolicited witnesses and hard police work, there is some good luck that comes in the form of a phone call.

Finally, in September 2005, the climax in a long string of unsolicited witnesses and hard police work, there is some good luck that comes in the form of a phone call.

A busboy at the country club where Bart worked, Rudy Rios, tells police he sold his identity to Bart and helped him escape to Mexico for a couple of thousand dollars. Now he's prepared to sell out his friend for a $10,000 reward from police.

A busboy at the country club where Bart worked, Rudy Rios, tells police he sold his identity to Bart and helped him escape to Mexico for a couple of thousand dollars. Now he's prepared to sell out his friend for a $10,000 reward from police.

Bart Whitaker is arrested in Mexico, and on the road back to Sugar Land, Sergeant Slott has only one unanswered question for his prisoner.

Bart Whitaker is arrested in Mexico, and on the road back to Sugar Land, Sergeant Slott has only one unanswered question for his prisoner.

Next, as the last 40 minutes of Bart's life tick down, yet another twist of fate. Stay with us.

Next, as the last 40 minutes of Bart's life tick down, yet another twist of fate. Stay with us.

With father and son both back in Texas, jailhouse phone calls confirm Ken's unwavering support of Bart as he awaits trial.

With father and son both back in Texas, jailhouse phone calls confirm Ken's unwavering support of Bart as he awaits trial.

He believes his son has truly changed and repented and now feels genuine remorse.

He believes his son has truly changed and repented and now feels genuine remorse.