That's what suicide attempts are. A call for help.
Pessotto was seeing a shrink, he was under medication, so he was at leas psychologically fragile.
A new job, marriage problems, overestimated calciopoli (at that time), and no medication that morning could be enough for him to jump out of the window. Who knows what else he was going through?
He jumped from 13m high, aimed for a car to break his fall.
Btw: you say that it wasn't a suicide attempt because 13m is not high enough. You rule accident out, so I guess attempted murder is the only option?
Is 13meter high enough for a murder and not for a suicide then, sherlock?