A Brooklyn pastor pleaded guilty Tuesday to embezzling $3 million over seven years from a day care associated with his church. The Rev. Paul Mitchell, 60, admitted in federal court that he broke the Eighth Commandment — “Thou shall not steal” —while leading East New York’s Changing Lives Christian Center. Prosecutors accused the pastor of pocketing money intended for the supervision and personal development of young people in the church’s care. Officials said he even used the embezzled funds to purchase his fiancée’s engagement ring. “The defendant treated his organizations’ accounts as his own personal piggy bank, stealing millions of...