my house. >> christine told detectives don sometimes suffered road rage. so, maybe an angry motorist followed don home after an argument, or maybe it was someone he knew, someone with access to the house. kaplan spoke to don's landlord, benny ruiz, who'd shown up at the scene. he told kaplan that don was a kindhearted man, and wondered if his murder had anything to do with his work with homeless people. don's mom, sharon, out in california, got a call in the middle of the night. detective kaplan was on the line. >> he said ma'am, i'm sorry, your son is dead, and i think i started screaming. >> just 19 days before, she had lost her eldest daughter to cancer. 19 years before that, her youngest daughter had also died. and now, don. >> i could not get my head around it. it didn't seem real.