RICHMOND, Ind. — The Wayne County Prosecutor's Office has filed six felony charges against the mother of a 14-year-old boy who killed himself inside Dennis Intermediate School last December.

Mary York, 43, who now lists a Winchester address, has been cited for one Level 5 felony, five Level 6 felonies and a Class B misdemeanor. A judge found probable cause for the charges, and an arrest warrant for York was issued Tuesday morning.

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The charges are:

Dangerous control of a child for recklessly allowing her son to possess a handgun and rifle while aware there was a substantial risk of him committing a felony — murder or battery — and failing to make a reasonable effort to prevent the use of the firearms in the commission of a felony;

Neglect of a dependent by placing the dependent in a situation that endangers the dependent for failing to remove firearms from their South West 16th Street residence after her son threatened to kill students at Dennis and discharged a firearm inside her home;

Neglect of a dependent by depriving the dependent of necessary support for failing to remove a .45-caliber handgun from the home after her son threatened to kill students at Dennis;

Neglect of a dependent by depriving the dependent of necessary support for failing to provide counseling for her son because of his mental-health issues;

Neglect of a dependent by depriving dependent of necessary support for failing to reasonably supervise her son;

Neglect of a dependent by placing the dependent in a situation that endangers the dependent for failing to ensure her son was taking prescribed medications; and

Criminal recklessness for recklessly or knowingly performing an act that created a substantial risk of bodily injury to Dennis students and staff because she allowed firearms in her residence after learning her son had threatened to kill students at Dennis and had discharged a handgun in her home.

A Level 5 felony conviction carries a standard three-year sentence with a sentencing range of one to six years as established by the Indiana legislature. A Level 6 felony conviction has a one-year standard sentence and a range of six months to 2½ years.

On Dec. 13, York's son, who is not being identified by Pal Item because of his age, forced York's longtime partner at gunpoint to drive him to Dennis, according to the affidavit of probable cause. The son was armed with a handgun and a bolt-action rifle.

York called 911 to report her son was en route to Dennis to "shoot up the school," enabling police to begin their response and the school to lock down, the affidavit said. Officers watched York's son shoot through a glass exterior door to gain entry into Dennis. Pursuing officers exchanged gunfire with him, then he shot and killed himself with the rifle.

There were no other injuries.

York told investigators that her son had depression issues for four or five years prior to the incident, according to the affidavit. He had been evaluated in Richmond, and after expressing suicidal thoughts, was referred to Fayette Regional Care Pavilion. York removed her son from an inpatient treatment program because of the cost and did not make him take prescribed medication after he said it made him feel weird, the affidavit said.

Mental-health records indicate that York's son said he wanted to go to Dennis and kill students who had bullied him and he heard voices that commanded him to kill someone, then kill himself, the affidavit said.

Richmond Community Schools records showed no documented incidents of the son being bullied or of York taking any actions to address bullying, according to the affidavit. She removed him from school in sixth grade and he participated in an online school program for about two years.

Although York denied to investigators knowing her son's mental-health diagnosis, Fayette Regional records indicate she was informed of his mental-health issues, the affidavit said.

According to the affidavit, York's work schedule left her son unsupervised from 11 p.m. to 7 a.m. about one week of every three weeks. An incident also occurred during October 2018 when York's son fired a handgun inside the home, but the incident was not reported to police.

After that, firearms in the home were locked in a gun cabinet; however, on Dec. 12, York's son recorded video on his phone of himself breaking into the gun cabinet to access the weapons. He also said on the video that he intended to kill people at Dennis the following day, according to the affidavit.

The affidavit also references television interviews of York during which she denied having any warning signs of her son's plan at Dennis. During a recent "True Crimes" interview with Dr. Oz that aired Sept. 19, she responded, "No, nothing at all" when asked if she worried her son would hurt himself or others.