A 47-year-old mother in Missouri is accused of killing her 16-year-old son, shooting the boy multiple times as he slept and then retrieving a knife from the kitchen and stabbing him, saying she wanted to put him “out of his pain.”

Krista Roy was taken into custody earlier this week and charged with one count of first-degree murder and one count of felony armed criminal action in her son’s cold-blooded slaying, court records reviewed by Law&Crime show.

According to a probable cause affidavit, officers with the St. Charles Police Department on Monday responded to a residence in the 3200 block of Lightfoot Drive after receiving requests for a welfare check from the victim’s friends. The callers were described as being “extremely close to the victim” and told police that they had not heard from him in several days, which they said “was highly unusual behavior.”

Upon arriving at the home, first responders said they detected a “foul odor” from the home before entering. Inside, police said they found the victim deceased in his bed from “multiple gunshot wounds and multiple stab wounds.” The manner of death was ruled a homicide.

A knife that appeared to be covered in blood and ballistic evidence were recovered from the scene.

In subsequent interviews with the friends who made the requests for the welfare check, they advised police that the victim “loved life” and “was not suicidal.” They also described the victim’s mother as being “strange” and “minimally involved in his life.”

Speaking about the last time they saw the victim, one of the friends told investigators they had been together on the evening of Friday, Sept. 26, until about 2 a.m. on Sept. 27, when he dropped the victim off at his residence.

“The friend informed detectives that he had attempted to contact the victim several times over the course of the weekend but was unable to reach him,” the affidavit says.

Investigators said they also discovered that the victim’s mother, whom they identified as Roy, had attempted to commit suicide earlier in the day Monday and was still being treated at a local hospital. Detectives responded to the facility and, upon Roy’s release, took her into custody in connection with her son’s murder and brought her to the police department for questioning.

Police say that after voluntarily waiving her Miranda rights, Roy confessed to killing her son in a recorded interview, revealing grisly details about the teen’s final moments.

“Roy admitted to retrieving a firearm from her ex-husband’s residence on 09/26/2025, with the intention of shooting the victim and herself,” police wrote in the affidavit. “Furthermore, Roy admitted to shooting the victim multiple times while he was sleeping. Roy further confessed to lying in the bed with the victim, caressing him, and hearing the victim cry out ‘Mommy’ several times.”

When her son did not immediately die from the gunshot wounds, Roy allegedly admitted that she continued her efforts to end his life.

“Roy admitted to getting up from the bed, retrieving a knife from the kitchen, and stabbing the victim,” police wrote. “Roy stated she did this to put the victim ‘out of his pain.’ When asked if she wanted to kill the victim, Roy replied, ‘Yeah.'”

Roy was transported to the St. Charles County Jail where she is currently being held on a $1 million cash-only bond, records show. It was not immediately clear when she was scheduled to appear in court.

The post Woman shot sleeping son, stabbed him as he cried ‘Mommy’ because she wanted to put him ‘out of his pain’: Police first appeared on Law & Crime.