Julie Jensen: A Murder Foreseen

Julie Jensen appeared to have it all: a husband, Mark, to whom she'd been married for 14 years, two sons and a nice home. In 1998 Mark told police he found Julie dead. Police called it a suicide, but D.A. Bob Jambois said, "It didn't look right." Mark was later convicted of murder, thanks partly to a letter Julie wrote foreshadowing it. Watch the full story on "20/20" online here. (Courtesy the Griffin Family)