ST. PAUL, Minn. (AP) — Three Minneapolis police officers charged with violating George Floyd’s civil rights sat by and “chose to do nothing” as Floyd pleaded for air and then went silent, a federal prosecutor said Tuesday at the start of closing arguments in their trial. Prosecutor Manda Sertich singled out each former officer — Tou Thao, J. Alexander Kueng and Thomas Lane — as the government wrapped up its case in the monthlong trial. Kueng knelt on Floyd’s back, Thomas Lane held his legs and Tou Thao kept bystanders back.