Killers Amongst Us: Jodi Arias Stabs Naked Lover Dead In Shower (episode 1)

We know the ending. Jodi Arias stabs her boyfriend, Travis Alexander, 28 times, shoots him and leaves him to die in a shower. How did it happened? How did a whirlwind romance end in murder? The couple meet in Las Vegas at a job related seminar. After just a few hours, Travis Alexander tells friends he's found the woman he wants to marry. How did it go so wrong?