Bicycle detail

My bike was u-locked with two u-locks to my husbands bicycle which was cable and u-locked to a sturdy wooden fence post on a secure apartment property. Someone either jumped the fence from the alley behind my building and cut the cable locking the bikes to the wooden post and took both bikes u locked together, or used a rope that I found at the scene of the crime with a hook on it, to hoist the bikes up towards the other side of the wooden wall/fence and snipped it that way. A cut cable and lock were found.