Stanley Brezenoff, executive director of the Port Authority of New York and New Jersey, right testifies at House subcommittee hearing on World Trade Center bombing. At left is New York City Police Commissioner Raymond W. Kelly. Elgabrown , y By William Sposato Reuter NEW YORK, March 9-The investigation into the bombing of the World Trade Center is focusing more closely on the two men already charged in the case and their ties to a prisoner who was jailed on charges stem- ming from the 1990 killing of Rabbi Meir Kahane, in- vestigators and news reports said today. Mohammed A. Salameh is charged with taking part in the Feb. 26 bombing that killed five people and injured more than 1,000. He rented the van believed used to deliver the bomb to the underground garage of the low- er Manhattan landmark. Ibrahim Elgabrowny, arrested for scuffling with au- thorities as they searched his apartment, also has been called a suspect in the case by prosecutors. The two are known to have ties to Sayyid A. Nosair, who is in prison on charges stemming from the killing of Kahane in New York. Nosair was convicted of gun pos- session and assault in the case, but cleared of murder charges. The New York Times reported today that Salameh and Elgabrowny are now thought to be pivotal figures in the case. In Washington, FBI Director William S. Sessions said '@oday that the bombing should not be seen as an indi- N6n of a coming wave of terrorist acts. ,the American vublic should alwavs be vimilant. but Investigation Observers at Nosair's 1991 trial said th, was among those who regularly attended and newspapers today showed pictures of N someone who appeared to be Salameh. Prison authorities said today that Nosair the investigation, although his possible rol disclosed. According to news reports, Nosair's cell prison in upstate New York has been searcl documents connected with the bombing. Officials say Salameh and Elgabrowny hav( fundamentalist Muslim group whose spiritua Omar Abdul Rahman. Abdul Rahman has said repeatedly that ht ing to do with the bombing. "I do not condoi incite such acts of violence," he said in a st@ sued by his lawyer. At the same time, investigators are also 1( whether the bombing, involved Middle Eas groups. James Fox, New York head of the FBI, told Reuter that he believed those responsible for the blast were part of an organized operation. "They may just be an ad hoc group, but my gut feel- ing tells me it's not the case," Fox said in the interview. "We're looking pretty closely at a possible link between these guys and the old-line terrorist groups." ~~-Faxwlfio,4saifi,ka&xoac4sdnore searches for evidence ir& arrests. workers.. todiy cqntinued haul-