let's go places. >>> as police investigated the murder of ken maclennan, they heard rumors that his relationship with his 17-year-old son, jason, wasn't a good one. according to friends, ken all but abandoned jason's mother as she lay dying of cancer, and jason deeply resented it. >> regardless of the relationship between ken and his wife, if the woman's dying, it just looks bad if you take off and go to another continent and don't come back for weeks, leaving jason, who might have been 12 years old, to take care of his dying mother. >> it appeared that things changed for him, that he became more troubled, started to have more trouble in school. >> after his wife's death, ken continued to travel extensively for work. >> there were stories about jason being left alone for weeks with virtually nothing in the refrigerator and having no money. i don't know how exaggerated these stories are. obviously, jason didn't starve. >> after ken maclennan's murder, police received a tip from one of jason's fellow high school students. >> at least one other high school student had been asked to provide a gun, a