BILL HEMMER, CNN ANCHOR: Now to the case of kidnapped "Wall Street Journal" reporter Daniel Pearl. State department officials and Pearl's newspaper colleagues cautioning now against reports that Pearl's release may be imminent. Pakistani police continue to interrogate a man they call the prime suspect, but one U.S. official close to that investigation says others still may be involved. So the waiting game continues. From Karachi now, here's Ben Wedeman watching it there.</s>BEN WEDEMAN, CNN CORRESPONDENT (on camera): Pakistani police spent all day Wednesday intensely grilling the man they have described as the mastermind behind the kidnapping of "Wall Street Journal" reporter Daniel Pearl. Now this man, of course, is British born and educated Ahmed Omar Sheikh Saeed, more commonly known as Sheikh Omar Saeed. He was arrested in Lahore, a city in northeastern Pakistan, on Tuesday and transported soon thereafter to Karachi. Now the police have been intensely interrogating Mr. Saeed ever since he was picked up, but say that he has yet to come up with any concrete, palpable details or information that might lead to the release of the kidnapped American journalist. Now shortly after Saeed was detained in Lahore on Tuesday, he told the police that Mr. Pearl is alive and is in Karachi. That seems to be the sum total, at least as far as journalists are being told, of what has come out of those interrogations. Meanwhile, the police in Karachi have carried out a series of raids in this crowded, teaming city of 14 million. Those raids, equally fruitless. Now the caution that we're now hearing, it stands in stark contrast to the optimism that was coming out of Pakistani officials on Tuesday. They say now that they have no reason to believe Mr. Pearl is dead. Therefore, they think he's still alive. I'm Ben Wedeman, CNN, reporting from Karachi.</s>HEMMER: A roller coaster indeed. Ben, thank you.
Wait Continues for Daniel Pearl