MANCHESTER, Tenn. -- The driver of the Greyhound bus that crashed Wednesday after an apparently deranged passenger slashed his throat advised the public to keep traveling by bus. "Don't let this one incident keep you from traveling by bus," said Garfield Sands, who is recovering from stab wounds inflicted by Damir Igric, a Croatian citizen. The attack caused Sands to lose control of the bus, which careened across the highway into oncoming traffic before toppling into a field. Six people, including Igric, were killed in the crash. The bus was en route from Chicago to Orlando, Fla., when Igric attacked Sands, apparently without warning. Fearing that the assault was part of a coordinated terrorist attack, Greyhound suspended operations for several hours, until federal officials determined that the incident was isolated. The crash occurred near Manchester, Tenn., about 60 miles southeast of Nashville.