Caught In The Crossfire

Who Is To Blame For A Wife's Death And A Judge's Shooting?

(CBS)  On June 22, 11 days after that violent rampage that shook the city of Reno, police anxiously awaited the surrender of the man they believe to be responsible for the murder of Charla Mack and the shooting of Judge Chuck Weller.,

There was a question whether Darren Mack would give up without a fight, but in the end, the millionaire fugitive quietly turned himself in at a luxury hotel in Puerto Vallarta.

Mack’s last night was spent in a stark Mexican jail cell-a dramatic reversal of fortune for a man who was accustomed to living the high life.

What prompted Darren Mack to surrender?

"The only thing that I can think of is that he was obsessed with exposing what he believed were Judge Weller's injustices," says Det. Chalmers.

Darren Mack was carrying $36,000 in cash, 20 credit cards and a suitcase full of evidence.

"A pair of shoes with some blood spatter, some other clothing with what appeared to be blood stains were in the suitcase," explains Chalmers.

Chalmers says the blood stains on the clothing were analyzed and that the DNA profile matched Charla Mack.

Darren Mack, charged with the murder of his wife and the attempted murder of Judge Weller, has pled not guilty

Mack's attorneys say this may be a case of self defense. "If our investigation shows that this woman was violent and could get angry and do things that were inappropriate, that may actually raise the question of self-defense," explains David Chesnoff.

But Charla's friend Christine Libert tells Roberts, "She would never try to attack Darren or do anything like that. Even if she would, which I don't think she ever would, she would certainly have never even considered it with her daughter around. Ever. Period. It just wouldn't have happened."

Mack's attorneys may raise questions about his state of mind. "In conversations we’ve had with our client we are concerned that he isn’t grasping all the various legal issues that are required to be grasped to fully assist us in what we need to do in this case," says Scott Freeman.

Asked if Mack is mentally competent, Chesnoff says, "It's not for lawyers or prosecutors to decide… it’s for experts."

But an insanity defense could be a hard sell, given they will need to work around that so-called "to-do list."

Asked what he thinks of the list, Chesnoff says "I'd have to know who wrote it before I could tell ya."

"You don't think Darren wrote this?" Roberts asked.

"I didn't say that," Chesnoff replies. "But I don't know who wrote it. And until I know who wrote it, how could I possibly speculate as to what the meaning of it was?"