Criminologist talks about interviewing Tyler hospital serial killer William Davis

Updated: Mar. 22, 2023 at 10:08 AM CDT
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KLTV's Julian Esparza talks with criminologist Bryanna Fox about interviewing Tyler hospital serial killer William Davis. In October 2021, a jury found William Davis guilty of murdering patients during his time working at a Tyler heart hospital. A new TV series revisits the case.