A young woman is charged with luring another young woman to a Sherburne County lake, and then savagely beating her.

That tape, captured on a cell phone by one of many onlookers to the beating, was analyzed by the US Secret Service and led to the charged being filed. The Sherburne County Sheriff says 18-year old Sarah Jean Jarosz of Zimmerman beat the 19-year old female victim with brass knuckles when the victim showed up to Elk Lake this past March 17th. The victim was apparently interested in a man who was dating Jarosz, and Jarosz lured her to the lake by sending a text on her boyfriend’s cell phone.