If anyone's interested in other stories about feds looking the other way at murders committed by their informants, google some of the stories on Operation Black Widow, which targeted the Nuestra Familia in California.

"...the successful annihilation of organized crime's subculture in America would rock the 'legitimate' world's foundation, which would ultimately force fundamental social changes and redistributions of wealth and power in this country. Meyer Lansky's dream was to bond the two worlds together so that one could not survive without the other." - Dan E. Moldea