dramatic. he said no, this is really happening. >> and from inside his million dollar dream house. >> suddenly he started to scream. >> shot to death, a crime of passion, said police. >> somebody wanted this man dead very, very badly. >> the question was who? his ex? >> she was losing everything. >> or someone else? the arrest was starting. the strategy in the courtroom, that was the biggest surprise of all. >> he's overweight, out of shape, too fat. yes. >> was this suspect too fat to kill? >> thanks for joining us, i'm ann curry. a devoted father gunned down by someone on the stairs. it's a crime that made news because of its unusual defense. the suspect argued he was too obese to carry out the killing. the argument swayed the jury. here's dennis murphy. >> the world of pills.