LOS ANGELES , California ( CNN ) -- After shooting several people at the home of his former in-laws , police say Bruce Jeffrey Pardo , still dressed as Santa Claus , sprayed gasoline throughout the home intending to set it on fire . Police carry the homemade device they believe Bruce Jeffrey Pardo used to set the home on fire . But his plan went awry . The home exploded , windows were blown out , and part of Pardo 's Santa suit melted onto his skin . He suffered third-degree burns . That 's why police say he decided to kill himself rather than use the airline ticket to Canada that was in his pocket . Pardo killed nine people , police said . Three others were injured , including an 8-year-old . A 16-year-old girl was wounded by gunfire and was hospitalized with non-life-threatening injuries , police said . A woman who jumped out a second-floor window broke her leg and was hospitalized . None of the victims has been identified . Police said Pardo showed up at the home dressed as Santa and had $ 17,000 cling-wrapped to his legs and inside a girdle . Watch police talk about what was found on the gunman 's body » . He knocked on the door . And when the 8-year-old ran to greet him , he shot her in the face . Watch police describe the girl 's injuries » . Terrified people inside the home called 911 . `` Stay away from the window ! '' a woman can be heard pleading , `` Please come immediately ... he 's shooting ! He 's shooting ! '' See photos from the scene » . Some fled the house any way they could . Others sought shelter inside , some ducking under the dining room table , one witness said . Pardo was targeting his ex-wife 's family , police said , shooting some of them `` execution-style . '' Afterward , he prepared to set the home on fire using a homemade device designed to spread fuel . Watch investigators at the burned-out home » . After the home exploded , Pardo removed his Santa suit , put on street clothes and began to knock out lights in the area as he fled the scene , according to a witness on a recording of a 911 call . Pardo fled to his brother 's home in nearby Sylmar , California , police said . When Pardo realized his brother was n't home , he broke in and eventually shot himself to death , police said . Police later found his rental car with the remnants of the Santa suit on the seat . It was rigged to explode if the costume was removed . During a search of Pardo 's home in Montrose , California , police found five empty boxes for semiautomatic handguns , two high-powered shotguns and a container of `` racing fuel . '' Police said they recovered four handguns at various locations . Watch how the massacre unfolded » . Investigators have yet to identify the charred remains recovered from the burned house . Ed Winter , assistant chief Los Angeles County coroner , said the intense fire caused the top floor of the two-story house to collapse . Winter said the bodies were `` severely burned and charred , '' and dental and medical records and X-rays will be used to establish identities . Police said they have not accounted for Pardo 's ex-mother-in-law , ex-father-in-law and ex-wife . Police suggested marital problems as a motive for the attack and said Pardo and his wife of one year settled a contentious divorce last week . Covina Police Chief Kim Raney said Pardo 's former in-laws regularly have a party Christmas Eve and that one neighbor always arrives dressed as Santa . This year that neighbor was away , police said .
Police say suspect had flight scheduled from Los Angeles to Canada . Police believe Bruce Jeffrey Pardo 's injuries prevented him from fleeing . Pardo , who killed nine people , committed suicide after the attack , police say . Police found $ 17,000 cling-wrapped to Pardo 's legs , inside a girdle .