The hiring practices of Nursing Homes has been an issue for decades. It as an issue that many states have never addressed. This is just the most recent beating in those facilities to make the news. It has been going on for a great many years.
The 20-year old wasn't an employee. He was a patient.
Apparently housing younger homeless people, drug addicts, alcoholics, and various mental cases in nursing homes alongside elderly residents is a thing now.
Contrary to earlier news stories, he wasn’t an employee, but a young patient who beat an elderly patient.
While true, the article says that the 20 year old was a patient, not an employee.