4-death triple murder-suicide in Oklahoma, including 10-month-old baby

In an apparent triple murder-suicide, an Oklahoma mother allegedly shot herself after killing her three children, one of whom was a 10-month-old.
In response to seeing fireworks going off outside on Thursday, the Verdigris Police Department proceeded to look into a house, according to a press release from the Oklahoma State Bureau of Investigation.
After a three-hour standoff, police reportedly started talking to McCaslin, according to the OSBI. Officers entered the house after getting no response.
According to the bureau, they found McCaslin's body inside the house together with the bodies of her three children—a 10-month-old infant, a six-year-old, and an eleven-year-old—who had all been shot to death.
According to the police, McCaslin shot her three children before turning the gun on herself.
The Oklahoma State Bureau of Investigation and the Verdigris Police Department will continue to investigate the incident.