A document released Wednesday shows the Canadian Security Intelligence Service had wire-tapped the main suspect in the Air India bombing, but failed to keep those tapes.

A 1991 RCMP transcript shows that when two CSIS agents heard about the doomed Air India flight, they immediately pegged Talwinder Singh Parmar as the prime suspect in the bombing.

CSIS agent Ray Kobzey told the RCMP, "I thought that Parmar did it," but Kobzey failed to follow through on his suspicion because another agent was handling the file.

That agent, David Ayre, told RCMP at the time that it wasn't his responsibility to keep the tapes.

Air India Flight 182 blew up in the skies off the coast of Ireland in 1985. All 329 people aboard died. Earlier the same day, two baggage handlers in Tokyo died handling luggage for another Air India flight.

Back in 1985 CSIS had kept Parmar, a resident of Burnaby, B.C., under surveillance for three months because he was suspected of plotting attacks against Indian targets and wanted for murder in India.