The Back Pack - Money and Insanity

Daniel knew that sam had significant amount of money, and he wanted to get his hands on it. He explained that he was a pathological liar who couldn't bear to tell his fiancee rachel that he was broke and they were about to be evicted. Rachel's parents were paying for the wedding, but daniel wanted to take er on a cruise afterwards. Sure enough, when investigators checked daniel's computer, they found internet searchers for resorts in mexico. When asked what his motivation for the grisly double homicide had been, he replied, money and insanity.