He was found dead at one of his brother’s houses hours later.
His car, parked nearby and containing ammunition, exploded on Christmas Day after he rigged it with explosives.
Pardo originated from the San Fernando Valley and was a graduate of John H.
Francis Polytechnic High School in Sun Valley, Los Angeles and California State University.
According to public records, the Knollcrest Drive home is owned by Joseph Ortega.
Pardo came to the home dressed in a Santa Claus suit and carrying a package that was wrapped as a Christmas present, Raney said.
A man who dressed up as Santa Claus to slaughter nine people at a Christmas party used a home-made flamethrower as 'a Christmas present' to set his house on fire.
Witnesses saw Bruce Pardo use a metal device disguised with a Christmas bow to spray high-octane car-racing fuel around the home.
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.
He worked at the Jet Propulsion Laboratory in La Cañada Flintridge.
He met Sylvia Pardo, previously Sylvia Orza, in 2004. PST, Bruce Jeffrey Pardo, dressed in a Santa Claus suit, knocked on the door of his former in-laws' house, occupied by about 25 people, with a gift-wrapped package containing a homemade flamethrower in one hand and a 9mm semi-automatic handgun in the other hand; he also had three additional 9mm semi-automatic handguns in his possession.
Pardo died from a self-inflicted gunshot wound, according to Assistant Chief Ed Winter of the Los Angeles County Coroner's Office.
Pardo, a longtime usher at Holy Redeemer Catholic Church in Montrose, was married for about one year.