From; staff reports
Police suspect vandals or thieves threw a concrete stamp -- used to label concrete work such as sidewalks -- through the shattered glass door of General Nutrition Center at Maplewood Square Plaza, Rochester police said. Whether it did them any good still is not known.
The stamp apparently belongs to Birch Construction Co., whose office on the city's far southwest side also was burglarized overnight.
Police said the stamp was found in the store and likely was what flew through the door. It was not clear whether anything had been stolen from the retail store on the city's northwest side.
No damage estimate was available for either the retail store or the construction company office, according to the report.