The Covina massacre occurred on December 24, 2008, in Covina, a city in the suburbs of Los Angeles, California, United States. Nine people were killed, either by gunshot wounds or in an arson fire inside a house at 1129 East Knollcrest Drive, where a Christmas Eve party was being held. The perpetrator, 45-year-old Bruce Jeffrey Pardo, who had entered the house wearing a Santa suit, died from a self-inflicted gunshot to the head at his brother's residence in the early hours of the morning after the attack. Authorities cited marital problems as a possible motive for the violence; reports indicated that Pardo's divorce had been finalized on December 18, one week before the massacre. Three people, including Pardo's ex-wife and his former in-laws, were initially declared missing pending identification of their bodies.

This guy had a bad dating life and they call him the Santa-Gunman. 

We discuss what are red flags in dating? What should you look for and is it okay to get a background check on someone you've started dating.

• Significant age gaps
• Excessive drinking or drug use
• An imbalance in power 
• If you have to pay for everything
• They do a lot of lying about trivial things
• How they interact with their family
• An excessively dirty house

We talk about how it would be much easier to have a conversation about getting a background check at the beginning of a promising relationship than as a three-year anniversary present...   

In your background checks, you can get civil criminal records, judgments, bankruptcies, social media searching. And then of course you can always throw that surveillance detail in there and collect information the old school way. A lot of, I don't want to say older people, but some like persons, they usually don't do a lot of social media searching.

It's important to listen to your gut.