The City of Renton is offering a $2,500 reward for information that leads to the arrest and conviction of the person or persons responsible for breaking windows at the new Renton Highlands Library.

“We are very disheartened by this senseless act of vandalism that not only targets the library but is an outrage against the community,” Mayor Denis Law said Thursday in a press release. “The city has spent millions of dollars to revitalize the Sunset neighborhood and the new Renton Highlands library is one of the key assets we have invested in for this neighborhood.

“The entire community should be as outraged as we are and we hope someone will step forward with information on those responsible for this damage,” he said.

Over the course of three nights, vandals shattered 19 windows at the Highlands Library that’s under construction with high-powered BBs or pellets

The damage is estimated at about $100,000 and it will take at least a month to reorder the glass and have it shipped and installed and may delay the scheduled opening of the new facility.

“The library was originally scheduled to open the end of October, but with this vandalism we don’t know how much it will be delayed,” said city spokeswoman Preeti Shridhar.

Three large windows were shattered Friday night, followed by 10 windows on Monday and six more on Tuesday night at the library, 2801 N.E. 10th St.

“They are shooting until the windows shatter,” Shridhar said.

The Renton Police Department will have extra patrols in the area. Anyone with information about the vandalism is asked to call the Renton Police Department at 425-430-7500.

“Help us catch the vandals,” Shridhar said.