Prayer Vigil for Navy Yard Victims — St. George’s Episcopal Church in Virginia Square will be holding a 40 minute prayer vigil and candle lighting for victims of the Navy Yard mass shooting tonight. [ARLnow Events]

Va. Is Test State for Gun Data Sharing — Virginia is a test state for a nationally-linked system that will share information on guns used in crimes across law enforcement agencies. The system is intended to skirt federal law that prevents the sharing of federal gun trace information. As of Monday, twenty-five Virginia law enforcement agencies had signed on to the program. The Arlington County Police Department was not on that list. [Richmond Times-Dispatch]

Dedication for New Wakefield HS — A dedication ceremony will be held for the new Wakefield High School on Sunday. Students, staff and community members are invited to the ceremony, which starts at 1:30 p.m. It will be followed by tours of the school, an opening ceremony for Wakefield’s new aquatics center, and an aquatics center open house. [Arlington Public Schools]