Hard drive crash

Hello,

I have an external hard drive that just crashed. I have reason to suspect sabotage. Prior to the crash there were no signs of errors or problems. I was running S.M.A.R.T. software. Before going away for a week, I powered this drive off. Upon return, the drive would not start. The heads are now in contact with the platters as though the drive was either contacted by a strong magnet or moved while running. My question is: does this make sense?

It worked fine, then I shut it down. One week later it would not start again. Do drives ever crash this way? I have experienced several crashes in the past. In each case they showed signs of failure before actually crashing.

What do you think?