Two Chechen men suspected of taking part in the murder of American journalist Paul Klebnikov have been arrested, police said Tuesday, and one commentator cited his interviews with a rebel leader as a possible motive. Three guns were seized from the men, and preliminary findings indicated that one of the weapons might have been used in the July 9 murder of Klebnikov, the editor of Forbes magazine's Russian edition, police chief Vladimir Pronin told the Interfax news agency. He added that the suspects, who were detained overnight, had kidnapped an unidentified person prior to the killing.Police spokesman Pavel Klimovsky confirmed the suspects had been detained, but gave no other details. The chief prosecutor's office later sharply reprimanded Pronin, telling Interfax that nobody is authorized to comment on the case except the appropriate investigator and prosecutor. The release of information by anyone else is "unacceptable" and could seriously hurt efforts to solve the crime, Interfax quoted the prrosecutor general's office as saying. In a telephone call to The Associated Press in New York, Klebnikov's brother, Michael, read a statement from the family saying it would "wait to see the incontrovertible evidence that the individuals apprehended today in Moscow are indeed responsible for Paul's murder. In any case, this would be only a first step to identifying, apprehending and convicting those responsible for ordering his assassination." Klebnikov, an American of Russian ancestry, was gunned down outside the magazine's office in downtown Moscow in a slaying that compounded concerns about the safety of journalists in Russia and about the violence that is often used to settle scores.