Detailed text transcripts for TV channel - CNN - 20110415:15:30:00
>> reporter: son of sam. how david berkowitz identified himself in 1977. serial killer shot 13, murders 6 before getting caught. >> i had a certain amount of rage in my heart regarding mr. berkowitz. >> reporter: joseph coffey led the task force created to catch berkowitz. >> emotionally you have memories coming back to you all the time. >> reporter: his background giving a unique perspective into the long island investigation. >> keep this in mind. these bodies were hidden for a purpose. whoever this is, didn't anticipate that these bodies would be found. >> reporter: what does that say to yo...
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