Hear No Evil (2017)

First Air Date: 2017-05-17
Last Air Date: 2017-06-21
Total Seasons: 1
Total Episodes: 6
Episode Runtime: 43 min.
Network: Investigation Discovery

Audio evidence helps police solve real-life homicides. From random killings and revenge hits, to America's most depraved serial killers, detectives discover audio evidence of the most harrowing cases in history.