A Pennsylvania nurse who administered lethal or potentially lethal doses of insulin to numerous patients pleaded guilty to three counts of murder and other charges Thursday and was sentenced to life in prison.

Heather Pressdee, 41, was given three consecutive life sentences and another consecutive term of 380-760 years behind bars during a hearing in Butler, about 30 miles (48 kilometers) north of Pittsburgh. She played a role in the deaths of at least 17 patients who lived in five health facilities in four counties between 2020 and 2023, prosecutors said.