. >> he was motivated to kill nicholas howard to prevent any other witnesses, prevent having to share insurance proceeds, and because he had a long vendetta against the mother as a scorned lover. >> i don't know if nick planned a scam with ralph. it makes absolutely no sense to me because you can't get insurance money if you're alive. and because i know how nick loved me and loved our family. >> nick had told people, i'm going to be a millionaire before i'm 30. nick had also made the comment within the week before his disappearance that he could disappear and nobody would ever be able to find him. you can look at that a couple of different ways. yeah, that leads to believe that perhaps there's some involvement. the family would like to think otherwise. it's difficult to say. and i'm not sure we will ever know. >> ralph marcus was tried and convicted of first-degree murder and sentenced to life in prison without the possibility of parole. >> i was amazed at the team, the california highway patrol team, the way they put things back together. it was very interesting in court, even though