Photo: KWTX

Christine Thi Woo's husband reported her missing, after she and their 3 children hadn't returned home since Monday.

Authorities found Woo, 39, dead in the parking lot of a Target department store in a suburb of Dallas last night.

Her three children ages 1, 3, and 5 were also found in the vehicle beside their deceased mother.

The cause of death has not been determined as an autopsy is underway.