To unblur a really bad picture, to make it worth to do, it has to very special or at least have some interesting parts or the work is too much to endure because you will not get ever back to what it would have been if he hadn't have shaken the camera.
If it is primarily faces that you must restore, if you have on hand other pictures of the people in unblurred shots, similar expression and pose, you can collage the photos together and get a respectable result.
Badly blurred photos aren't improved very much with the unsharp mask.
Every day's a new day, "draw" on what you've learned.
Sally M. Bode