stolen 2015 Trek X-Caliber 7

Away on business trip for 2 weeks. Left bike in locked storage unit (hardly visible) in basement of locked apartment building. Returned to find storage unit padlock latch broken--the metal ripped off from the section attached to the unit door, and the bike stolen--nothing else in storage unit was disturbed. Bike was last seen on July 7th; it could have been stolen any time between the 7th and the 27th. I do not advertise my travels, had a friend frequently "living in" my apartment while away, and I'd kept my other bike in the storage unit for the past 2 years unharmed. Tips resulting in recovery will be rewarded.