There's a couple possibilities. One, we've had issues in with this in the past with my dad's truck - it's been broken into once, the other time he left it unlocked so eh. We're on a quiet street, houses on only one side, so there's not a huge risk of being seen at night. We also live across from a huge field that has a homeless camp in it (about a mile in), which has been an issue in the past. Or, and I can't rule this out...the ex-fiance. He's on the list because it IS really weird that they broke the window....and didn't do anything else, or take anything (my laptop was in the car, cds, etc all in plain view).