Detailed text transcripts for TV channel - MSNBC - 20180401:07:35:00
>> reporter: in police work, a good tip can make your day and also make your life a lot more complicated. just such a tip came to the desk of the detective working the kathleen peterson case. >> i think it was two or three days after kathleen's death is when i first had contact witum the familyembers of elizabeth ratliff. >> reporter: and just who was elizabeth ratliff? to answer that question we have to turn the clock back almost twenty years in michael peterson's life and go across the atlantic to germany. in the early 1980's, michael peterson was living with his first wife near a u.s. air f...