Arizona Department of Public Safety officers were assisting Phoenix police in the search for the suspects.
Yellow crime scene tape blocked off the roads around the single story brick home, its windows covered from the inside with tin foil. At least 20 bullet shell casings were marked with white evidence cards scattered around the sidewalk just in front of the house, which sat across the street from a sign designating the area a drug and gang-free zone.
The shooting occurred just two days after a man opened fired at a Phoenix office building in a dispute over a lawsuit, killing two people and injuring a third. Police said the gunman — Arthur Douglas Harmon, 70 — was found dead early Thursday in the Phoenix suburb of Mesa from an apparent self-inflicted gunshot wound.