Bicycle detail

Me and my friends went to Dicks Sporting Goods to play golf. When we walked in we put our bikes by the entry of the sliding doors, visible from the cashier. We then go upstairs play golf walk around then we come back to leave and my bike is gone. My friends bike are still there but mine got stolen. We then called the police and ask an employee if they could check the cameras. They checked and supposedly he came in 5-10 mins after we walked in and he walked in took my bike and walked out. My bike is a trek marlin 5, black frame with gray writing of the logo trek, Red grips, Red pedals, and a Red seat.