well, at carmax, you don't have to worry about being misled. the price online is the same price in the store, which is the same for everyone. even guinea pigs. it's only fair mr. biscuits. only fair. ♪ carmax music sting next this monday night, the manhunt for a highway shooter in detroit. police linking the gunman now to a fourth shooting. here's abc's adrienne bankert. >> reporter: police today expand their search for evidence. on the hunt for a gunman who took aim at drivers on michigan freeways. >> can you call the police for me? i just got shot in the leg. >> reporter: the first of four people targeted. seen here stumbling into a detroit gas station just before 3:00 a.m. thursday. >> i thought it was a rock. i'm on 94, i heard a big bang. >> reporter: minutes later, a bullet tears though this man's truck. >> it went through the car. a bullet was actually stuck on the bottom of my seat. i think it was probably about five, six cars down, i saw a gun flashing out the window. >> reporter: three of the