Washington (CNN) -- The suicide bomber who killed seven CIA officials and a Jordanian military officer last week in Afghanistan was a Jordanian double-agent, a former U.S. intelligence official told CNN Monday. The bomber was a source who came to the base camp in Khost near the Pakistan border for a meeting on December 30, a senior U.S. official also confirmed. The man had been used by both countries' intelligence services in the past, and had provided information about high-value targets, the senior U.S. official said. "Yes, it was a joint U.S.-Jordanian source who had provided over the period of his cooperation a lot of very detailed good information that was of high interest at the most senior levels of the U.S government," the former U.S. intelligence official said.
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U.S. official: Man had been used by U.S., Jordan for intelligence services
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Source says man had given "very detailed good information that was of high interest"
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Former official: Bomber was met off-base by U.S. officials who failed to search him
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Man killed seven CIA officials and a Jordanian military officer last week in Afghanistan
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Both the @placeholder and U.S. intelligence services believed the man was loyal, according to the former intelligence official.
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An American intelligence official vowed last week that the @placeholder would avenge the attack.