Murder-suicide eyed after St. Louis mom, 3 daughters found shot dead

An email sent by a mother to her estranged boyfriend indicates she fatally shot her three young daughters before killing herself in rural eastern Missouri, authorities said Thursday.

Jefferson County Sheriff Glenn Boyer said all four were found shot in the head early Thursday outside the ex-boyfriend's home near De Soto, about 45 miles south of St. Louis.

Authorities have identified the victims as Lisa Cochran, 32, Autumn Cochran, 10, Alyssa Cochran, 11, and 22-month-old Faith Ehlen.  Police say Lisa sent an email out just before 8 p.m. Wednesday to family and friends entitled, “Goodbye,” reported.

Investigators also say they have evidence that Lisa purchased a shotgun from the Arnold, Missouri Walmart on August 29.

Lisa Cochran was found dead on steps leading to the porch. The girls, ages 1, 10 and 11, were found inside a van in the driveway.

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Boyer said an email sent by the mother to relatives and her ex-boyfriend led investigators to believe she killed the children, then herself. He said the email was sent to the ex-boyfriend after 8 p.m. Wednesday.

What appeared to be a newly purchased 12-gauge shotgun was found near the woman, but Boyer said it wasn't yet known who owned the weapon.

"At this point in time, it looks like it's going to be a murder-suicide," he said.

Detectives were questioning the ex-boyfriend but Boyer said he is not considered a suspect.

The ex-boyfriend called authorities shortly after midnight when he spotted the mother's van in the driveway at his home, Boyer said. The woman had an order of protection against the boyfriend obtained on Aug. 13. Because of that order, he didn't want to approach her van, instead driving to a nearby highway to call the sheriff's department rather than stay home and confront her, Boyer said.

Boyer said the man was the father of the 1-year-old girl. The couple previously lived together but the woman recently had been living with relatives. The other two girls were from a previous marriage.

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The Associated Press contributed to this report