Bicycle detail

This bike sat outside my apartment door in a "secure" building on the third floor for years. I forgot to lock it up and left for a week of travel. When I returned the bike (and another) were gone. I'm not sure if this is relevant but I did also notice a flyer regarding a recent filming by GWAVE Productions that also occurred during this week. I have asked the building if strangers were present in the building (such as the person who passed out these flyers.)