From an article:
Police say Alejandro Gallardo, 45, killed the 6- and 8-year-old girls some time early Wednesday in the Phoenix suburb of Tolleson before he took his own life, the Arizona Republic reports.
Neighbors reported hearing fireworks as residents rang in the new year — blasts which may have masked the sounds of Gallardo's sickening slaughter.
Other neighbors recalled past incidents of domestic violence between a man and a woman at the house. A young girl, of no certain relation to the dead, appears to have stumbled upon the carnage.