That was the assessment Sunday from Sheriff Dan Houston of an Albuquerque-area home (shown here) where a teen allegedly killed his entire family.
Nehemiah Griego, 15, is accused of fatally shooting his parents and three younger siblings.
He told deputies he was annoyed with his mother and had been having homicidal and suicidal thoughts, according to a probable cause statement described in a report from The Associated Press.
But Nehemiah said he intended to "murder more people," according to the statement.
His plan, the statement said, was to "shoot people at random and eventually be killed while exchanging gunfire with law enforcement."