Bicycle detail

My Gary Fisher Big Sur mountain bike was noticed stolen on 5/11/22 at 6:16pm. My aluminum bicycle is light blue with silver trim with disc brakes, upgraded SDP pedals and a Specialized Power Pro Elaston Mimic Saddle. The details of my bicycle are as follows:
Tires26 x 2.20inch Bontrager ACX
Cassette9-speed, 11 - 34 teeth
CranksetBontrager Race, 22/32/44 teeth
BrakesetAvid SD-5 front/Avid Single Digit 5 rear brakes, Avid FR-5 levers
Fork MaterialAluminum, single crown
Frame Tubing MaterialAC/DC ZR9000 aluminum
Shift LeversShimano Deore LX RapidFire

I placed my bicycle in the apartment building locked parking garage within a lock secured bicycle parking cage on the 2nd floor. I secured my bicycle to the iron bars of the cage with a Trek U lock on approximately 4/16/22. The building supervisor walked through the garage on 5/11/22 at 2pm and saw no damages. At 6:16pm my roommate noticed that my bicycle was missing and the lock was severed by a grinder. I have the lock in my possession.