The guy has ruined his own life and he probably didn't have to. It makes it tougher for us total creep guys who enjoy this sort of thing but in a more private and less intimidating manner.
He never should have taken a step stool by the babe's window. A definite no-no. Nor do you do what he was doing in public, however exciting his view was. Yikes.
The guy lives in the same complex. Not sure whether or not he had a view into her unit from his using binoculars or a zoom lens, but obviously that would have been the way to go.
Guys don't have to put themselves at heavy risk to check out the babes.