Whoever walked off last year with $1 million in $20, $50 and $100 bills from the vaults of the First National Bank of Chicago still has the loot.

The FBI is continuing a full-time investigation into the heist. Investigators even have a fairly solid idea of who pulled it off - a longtime bank employe who has since been dismissed for failing to cooperate in the investigation.

However, the suspect has not been charged - or even named - because evidence is lacking.

The cash, which weighed 40 to 50 pounds, disappeared sometime during Columbus Day weekend, 1977, from a cart in the bank's heavily guarded vault. The bank's heavily guarded vault. The bank spent two days checking its bookkeeping before calling in police.

The suspect had regular access to the vault and was there during the weekend in question. He has taken one inconclusive lie-detector test.

The FBI says the suspect has not changed his lifestyle or given any other outward indication that he is implicated. Investigators expected new evidence eventually. The statue of limitations runs out in 1984.

"We knew who most of the guys were in the Brink's robbery back in the '50s within six months," an investigator said."But it took 6 1/2 years before they were arrested."