Three carers ran a sick "fighting club" where two women with dementia met each other on a camera, the police said on Friday.
Marilyn Latish McKey, 32, Tonacia Yvonne Tyson, 20, and Taneshia Deshawn Jordan, 26, are responsible for attacking people with disabilities.
The three, who worked in Danby House house living with assistance in Winston-Salem, North Carolina, alleged that he had encouraged the residents to fight.
They were arrested after treatment in a complaint of abuse in June involving the 70-year-old women and 73 years of age.
Lieutenant Gregory Dorn with Fox 8 said: "When you are talking about someone who is not able to take care of him / herself, we must pay particular attention to that."
Investigators learned that some Danby House workers seemed to be encouraging residents with each other.
One of the residents was physically assaulted by one employee in a separate incident, the police were told.
According to court documents, McKey pushed the 73-year-old woman into her room.
Tyson and Jordan, who filmed the contact, did not help officials.
But in these separate events, the 73-year-old woman started fighting with the 70-year-old person and the three suspects were watching him, according to court docs.
The three are said to have filmed the fight and inspired it.
No injuries were reported or detected during the probe.
'READ THAT! HELP YOU!
Documents from the Department of Health and Human Services in North Carolina show that one of the women heard, “Let him go! Help me! Help me! Let him! ”
But McKey, Tyson and Jordan continued to watch, but the Winston-Salem Journal reported.
And at one point, a worker told the desperate resident “stop the screamive,” the reported paper.
Danby House said in a statement that the three women were returned in June when managers were made aware of the terrible allegations.
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A spokesperson said: “Danby House has a zero tolerance policy in relation to the abuse of the people in their care and so McKey, Tyson and Jordan were abolished immediately in June when community management was made aware of this situation.
“Administrators are working closely with Winston-Salem Police Department during its investigation to ensure justice is served.
“Additional staff training and a more rigorous vetting process was put in place for all new and existing employees at Danby House.”