stolen 2018 Mongoose

We had to leave our bike locked overnight from Thursday, September 8th through Friday, September 9th. It was locked to the southmost bike rack by the staff parking lot. When we went to retrieve our bike after school on September 9th, we realized it was gone. A friend of my son, who usually parks his bike in that same spot, believes it was gone when he came to school, so we believe it was stolen overnight. We also saw no signs of the lock used, a Titanker lock. The bike looks like this: https://www.emirtar.com/products/mongoose-alert-mag-wheel-mountain-bike-24-inch-wheels-7-speeds-orange?gclid=EAIaIQobChMI5LKCiIWK-gIVv2xvBB0X9Q9FEAQYBCABEgL-SPD_BwE