MSNBC Dateline December 30, 2019 08:46:00
Look at the data that's in this gps." >> reporter: amazing thing. the gps preserved in its memory, in almost infinite detail, its very last trip. which was as follows -- may 4th, 2006 around 2 p.m., the gps headed out toward catalina island. went to the back side, where it seemed to putter around aimlessly in the middle of the night. then returned back to the dock 6:00 a.m. may 5th. that little device seemed to pinpoint the place and time of steven's murder. but how could detectives be sure the gps belonged to harvey and was on his boat? and then, what do you know. luck again. when harvey boug...