For instance, these sources said, the F.B.I. declined to turn 1 over documents in which its Chicago office said that their informer had been the sole source of information that led to the Chicago police raid in 1969 in which the state Panther leader, Fred Hampton, and an aide were killed.

Those documents were obtained only in the last week by the committee because they (turned up in a civil damage suit filed in Chicago by the Panthers who survived the raid. They emerged there because testimony in the case indicated that documents were being withheld and a Federal districl judge, Joseph Sam Perry, ordered a search that turned up more than 50 volumes of previously undisclosed files.

The Panthers became the primary focus of the “black nationalist hate groups” section of Cointelpro by July 1969, and were the target of 233 of the 295 actions authorized against black groups, the report says.

Mr. Hoover, then the F.B.I. director, sent a memorandum to 14 field offices in late 1968 noting that a “state of gang warfare” existed between the Karenga organization and the Panthers “with attendant threats of murder and reprisals.” He ordered “imaginative and hard‐hitting counterintelligence measures aimed at crippling the BPP” to be drawn up to “fully capitalize” on the rivalry and “exploit all avenues of creating further dissension” in the Panther ranks.

On Jan. 17, 1969, two Panthers. Alprentice Carter and John Huggins, were killed in shootout with US members on the University of California, Los Angeles, campus. The F.B.I. helped stir the feud further, the report says, and on May 23 John Savage, a Panther, was killed and another, Sylvester Bell, was slain on Aug. 15, both by US members. There were other confrontations.

At one point, a bureau memorandum said, its informers in both camps would be used, so the Karenga group would be “appropriately and discreetly advised of the time and location of B.P.P. activities in order that the two organizations might be brought together and thus grant nature the opportunity to take her due course.”

Enmity Inflamed

Although it is not mentioned in the report, both the police and Panther sources say that in a split that deveioped in the Panthers, Robert Webb, a member of the Cleaver faction in New York, was shot while selling the party newspaper on 125th Street on March 9, 1971, by Panthers loyal to Huey P. Newton. In retaliation, Samuel Lee Napier, circulation manager of the paper, controlled by the Newton faction, was slain in Queens on April 17, 1971.