(Pekin, IL) — Prosecutors in Tazewell County are ready to take a second crack at convicting a former Pekin police officer of roughing up a teenager. Nathan Ujinski’s first trial ended with a mistrial back in August when jurors couldn’t agree on a verdict. Investigators say Ujinski slapped a handcuffed teenager several times and insulted him after he arrested the teen back in July of 2016. Prosecutors say Ujinski’s second trial should start in January.