Evidence of what? A father wanting to know where his kids were taken to? Or an abuser stalking his girlfriend. From the 'evidence' presented, it could be either one.
For all you know he did this in cooperation with police and HR. You leap to conclusions with zero supporting information.
Well, I have never dealt with this situation in my life, but I am going to go out on a limb and say that when you go to the police, they don't say "well, since you work at AT&T, you snooping is probably the best solution we have".
I think we're pretty fucking sure he didn't do this with the police and HR.
For all you know he did this in cooperation with police and HR. You leap to conclusions with zero supporting information.