Two guards later pleaded guilty to Federal civil rights charges for an incident in which a Cuban inmate was kicked, hit and pushed.
The announcement will come after seven days of deliberations in the trial of four police officers on Federal civil rights charges.
Courts have consistently held, however, that an acquittal in a state case does not preclude the possibility of Federal civil rights charges against the same defendant.
He had already received a year of house arrest and five years' probation after pleading guilty to Federal civil rights charges and tax evasion.
He vowed to press the Justice Department to bring Federal civil rights charges against all the defendants in the case.
He added that he favored pursuing Federal civil rights charges against the officers.
Federal rights charges were filed in June, after state officials said they had found insuffient evidence for homicide charges.
Two officers convicted of Federal civil rights charges.
Mr. Livoti was later convicted on Federal civil rights charges.
They were then tried on Federal civil rights charges.