By Jonathan Allen ST. PAUL, Minn. (Reuters) -A jury began deliberating on Wednesday on whether three former Minneapolis police officers deprived George Floyd of his constitutional rights by failing to come to the aid of the handcuffed Black man pinned beneath a colleague’s knee. Tou Thao, 36; J. Alexander Kueng, 28; and Thomas Lane, 38, all testified in their own defense in the federal trial at the U.S. District Court in St. Paul, telling jurors they did not realize at the time that Floyd was in dire need of medical care, which it was their duty to provide. The 12 jurors, all of whom appear to…