By all reports, she was a great mother with three adult children. A school teacher who kept in regular contact with her kids. Her youngest, a fourth year med student who by all accounts was brilliant, was visiting for the weekend. No known drug, alcohol, mental, or criminal issues. No history of police calls for any of them. NOTHING at all. When asked by police why he stabbed his own mother as she answered the door and was happy to see him- he said he'd been wanting to kill her for a long time and just decided during the drive to do it. When asked, he said he loved her, but that she was sometimes annoying. That poor woman never saw it coming because there was absolutely no reason to ever suspect he'd felt that way about his mother.