NASHVILLE, March 29: The former student of a Christian grade school in Nashville who killed three 9-year-olds and three adults in a shooting spree there was under a doctor's care for an "emotional disorder" and had amassed a collection of guns, the city's police chief said on Tuesday.

NASHVILLE, Tennessee, March 28: A heavily armed 28-year-old fatally shot three children and three adult staffers on Monday at a private Christian school the suspect once attended in Tennessee's capital city before police killed the assailant, authorities said.