Deborah Denison was supposed to be bringing kids home , police say . Instead , police believe she killed them and then herself . `` She sounded fine , '' slain boys ' mom tells TV station . Score: 6
Deborah Denison was supposed to be bringing kids home , police say . Instead , police believe she killed them and then herself . `` She sounded fine , '' slain boys ' mom tells TV station . The grandmother had a history of mental illness , CNN affiliate WFSB-TV reported .