Bicycle detail

I arrived at work just before 4 am. I put my bike in the bike locker outside of my work and locked it to the cable connected to the bike hook. Eight hours later when I got off work I noticed one of the locks on the bike locker doors was different. I accessed the the locker through an adjacent door and saw that my bike was missing. the cable connected to the bike hook was cut and only my helmet was left. Shortly after this I was told a coworker noticed one of the bike locker doors were open around 4:45 am. Likely someone was watching me and used bolt cutters to cut through the lock and cable. I filed a police report after the incident.