article_snippet: Authorities say a motive for the initial shooting, which took place in a Mesa motel, is still unclear, though three later shootings were believed to be the result of Giroux's attempts to flee the scene.
article_snippet: Motive unclear: Authorities are unclear about why Giroux, opened fire in a motel room, killing one and injuring three, before shooting three others while fleeing .
article_snippet: The string of shootings began when Giroux opened fire into a motel room, where witnesses say Giroux had been arguing while accompanied by another, unidentified man.
article_snippet: A witness described hearing another, unidentified man grab Giroux's shirt and tell another, unidentified man 'accompanied by another, unidentified man needed to leave the area' after another, unidentified man fired on three people in the room, according to a document filed in the case.
article_snippet: Giroux fled the motel, allegedly shooting Isaac Martinez, a 20-year-old culinary student at East Valley Institute of Technology, before stealing Martinez's car.
article_snippet: After arriving at an apartment nearby, Giroux reportedly entered and shot Donavon Worker, 24, before moving to another building and shooting Marcus Butler, 25.
article_snippet: Officers involved said Giroux went for a .45-caliber pistol tucked into Giroux waistband, though Giroux denied it and claimed Giroux was beaten.
highlights_snippet: The string of shootings began in a Mesa motel, though detectives are uncertain about why Giroux opened fire .
  
highlights_snippet: While fleeing the scene, he shot and carjacked an area culinary student, before shooting two others in apartment complexes .
  