Fairfield police were keeping tabs on the federal trial of the reputed head of the Connecticut White Wolves, a white supremacist group.

Ken Zrallack Jr., 29, of Ansonia, was acquitted by a federal jury earlier this week on charges he conspired to sell guns and hand grenades to a Ku Klux Klan offshoot.

"We have been following that case closely," said Police Chief Gary MacNamara, "and waiting for its conclusion."

MacNamara confirmed that detectives were investigating possible involvement by Zrallack in a disturbance last December at a menorah lighting on the Sherman Green.

During the investigation, he said, "We became aware of an ongoing investigation at the federal level" into Zrallack's activities. The decision was made, MacNamara said, to wait to see how that investigation and subsequent trial ended.

"Our investigators were at the trial at times to further our investigation," the chief said. Now, local detectives will make a decision on how to proceed, he said.

The Chabad of Fairfield menorah lighting -- the very event interrupted last year by protestors carrying Nazi flags-- is scheduled for 4 p.m. Sunday, again on Sherman Green.

"We have been talking to the rabbis, both for this event and the one on Dec. 8," MacNamara said. "We will have a presence there, but we don't anticipate any problems."

Another local menorah lighting is set for 6 p.m. Sunday at Jennings Park.

Last year three men wearing masks and dressed in black showed up just before the ceremony started and stood on the sidewalk. Each carried a flag, one with a swastika, another with an iron cross. The three shouted obscenities, but took off in a car when police arrived.

First Selectman Kenneth Flatto, who was at the menorah lighting, said at the time that her did not feel threatened by the trio, but called the police nonetheless.