The weapon used in a murder-suicide case in Jefferson County was bought at the in Arnold, the St. Louis Post-Dispatch reports.
A woman fatally shot her three daughters and then herself with a shotgun at a house outside De Soto. The bodies were discovered about 12:30 a.m. Thursday.
The house belonged to her estranged ex-boyfriend, according to the Post.
Sheriff Oliver “Glenn” Boyer identified the woman as Lisa Cochran, 32. Her daughters were 11, 10 and 22 months.
Boyer said Cochran bought the 12-guage shotgun Aug. 29 from the Arnold Walmart and sent an email to family members before the incident with the subject line of, “goodbye.”