Sen. Craig Tieszen, R-Rapid City, speaks in favor of a “sentinels” bill letting schools arm volunteer defenders on Wednesday, Feb. 27, 2013. The bill passed 21-14.

Sen. Craig Tieszen, R-Rapid City, speaks in favor of a “sentinels” bill letting schools arm volunteer defenders on Wednesday, Feb. 27, 2013. The bill passed 21-14.