Authorities are hoping a $100,000 reward will help them find the gunmen who took more than $1 million from a Brink's armored truck Tuesday.
The reward, posted by Brink's, is for information leading to the arrest and conviction of the four men who robbed the truck in a parking lot at the Walden Galleria.
The FBI and Cheektowaga police also made a plea Wednesday afternoon for anyone who may have seen anything suspicious to contact them.
"We've come across a number of cases where clerks have told us that people had walked in yesterday and said, 'We saw this happen,' or, 'We saw this go down.' We don't know who those people are. We need those people to call us if they saw anything," Cheektowaga Police Chief Bruce D. Chamberlin said.
The robbers, all wearing ski masks, left a gun in one of the vehicles used in the robbery, sources said Wednesday. G. Robert Langford, agent in charge of the Buffalo FBI office, said a substantial amount of evidence -- "more than fingerprints" -- was taken from the vehicles.
Authorities said it is too early to determine if the robbery was an "inside" job, and they don't believe it is connected with a robbery of an armored truck near Rochester earlier this year.
But they are checking robberies of other Brink's trucks.
"There have been several other Brink's robberies around the country, as recently as last month in Minnesota. We're looking at the similarity between those and ours. Just on the surface, there is some similarity," Langford said.
"It was a well-planned and executed robbery. Whether or not that means there was inside information, it's just too early to tell."
The two vehicles used in the robbery, a brown and bronze 1982 Chevrolet Caprice, and a white 1984 Chevrolet van, were stolen. Police said the car was owned by a Williamsville man and was stolen Saturday from outside the Transit Lanes bowling alley on Transit Road in Amherst. It was recovered behind Niagara Candy Inc., 3500 Genesee St., Cheektowaga.
Sources said about $1.5 million was taken, but Langford said the money still is being counted.
Authorities said the truck had made three or four other stops before arriving at the Walden Galleria. The truck was making a stop at the Key Bank branch in the mall.