Mark Towhey fills in for a vacationing Reshmi Nair. Mark Mendelson, Newstalk 1010 Crime Analyst and former homicide detective  joins the show to talk about a 30 year old cold case that was solved using DNA evidence..Everybody's got a slob friend, and if you don't, it might be you. Do you have a friend who regularly underdresses for formal events? What do you do?