    |Sentencé 1: Frank Quattrone , the former Credit Suisse:First  Boston’ technology: investment-barking “gird ;- reportedly  pleaded noi guilty Tuesday to ‘charges of obstruction of  justice and witness tampering - ‘    Sentence 2: NEW YORK ( ‘Dow ‘Jones’ ) = Former. star  investment’ banker “Frank ‘Guattrone pleaded’ nat guilty  Tuesday to criminal charges of obstruction of iste: and  witness tampering.