Experts discuss cases of domestic violence that escalate to homicide followed by suicide. Although the economy and unemployment are risk factors, prior domestic violence is by far the number one risk factor. The men usually display possessive, obsessive and jealous behavior, and they typically use guns to threaten and terrorize before they use them to kill. (Opinions or points of view expressed represent the speaker and do not necessarily represent the official position or policies of the U.S. Department of Justice. Any product or manufacturer discussed is presented for informational purposes only and do not constitute product approval or enforcement by the U.S. Department of Justice.)