Death of the 30-year - old medical resident discovered in Indiana lake April 30 . Patrick failed to show up for work in Michigan December 6 . Investigators combing through 20 minutes of audio and YouTube video . They led investigators out of the ditch where Patrick 's car rested to the highway . Family , friends trying to piece together what happened .
Death of the 30-year - old medical resident discovered in Indiana lake April 30 . Patrick failed to show up for work in Michigan December 6 . Investigators combing through 20 minutes of audio and YouTube video . Family , friends trying to piece together what happened .