An ex-nurse in Texas who murdered his patients by injecting air into their arterial lines after they underwent heart surgery was sentenced to death on Wednesday.
A jury found William George Davis, 37, guilty of Capital murder last week for killing John Lafferty, Ronald Clark, Christopher Greenaway, and Joseph Kalina while working at CHRISTUS Trinity Mother Frances Louis and Peaches Owen Heart Hospital in Tyler, Texas in 2017 and 2018. All four patients suffered unexplained neurological problems and died.
Police said in his arrest affidavit that on several occasions, Davis was seen on surveillance video going into the rooms of patients recovering from cardiac surgery moments before their conditions abruptly worsened.
Davis would inject air into their arterial lines making them sicker. He told his ex-wife in a phone call that money was tight and so he would intentionally hurt patients to prolong their stay in the ICU. The longer the patients remain in the ICU, the longer his shifts and the more he gets paid, CBS 19 reports.
Prior to his arrest in 2018, Davis viewed an article titled, ‘List of serial killers by number of victims.’ Davis also used his computer to either start searching “Mother Frances hospital” or fully searched “Mother Frances hospital investigating possible serial killer” on March 16, 2018, according to United States Secret Service special agent John Day.