Nashville manhunt for man who allegedly killed his estranged wife at her elementary school.

A manhunt is underway in Nashville for Candido Raul Rubio-Perez, who is accused of stabbing his estranged wife, Niurka Alfonso-Acevedo, to death outside the elementary school where she worked as a custodian. Rubio-Perez fled the scene after the attack, which occurred before school hours. Authorities assure there is no ongoing threat to the school's safety and offer a $5,000 reward for information leading to his capture.