A former nurse who killed seven elderly men with insulin injections at a West Virginia hospital has been sentenced to seven life sentences.

The nurse, who has mental issues, did not explain why she killed these men. 

The number of deaths increased during her night shifts at the hospital in 2017 and 2018. She searched the Internet for information on female serial killers and watched the Netflix series Nurses Who Kill. According to the judge, she repeatedly denied her involvement, telling investigators three times that she knew nothing about the crimes.