Dimora has been widely acknowledged as being Public Official One throughout this county investigation and rumors of a pending arrest have been circulating for some time.
In addition to Dimora, 55, of Independence, and McCafferty, 44, of Westlake, the indictment also lists Robert Rybak, 53, of Independence; Jerry Skuhrovec, 63, of Independence; Michael Gabor, 51, of Parma; and William Neiheiser, 62, of Gates Mills.
A second indictment charged Russo's former deputy chief auditor Samir Mohammad, 44, of Cleveland. A third indictment charged Cuyahoga County Common Pleas Judge Steven Terry, 58, also of Cleveland.
A fourth indictment charged Gabor alone.
Dimora pleaded not guilty just after noon in federal court. As he was posting bond in the courthouse, he spoke with Channel 3's Chris Tye.
"I've done nothing worng," Dimora told Tye. "It's like a person with cancer. You just don't know when it's coming."
Dimora added, "My family is OK. It's been a tough, two-year ordeal. I'm not shocked."
Regarding his early morning arrest, Dimora told Tye, "They just came this morning. I could throw a shirt on and we left."
Read the indictments (pdf)
Cuyahoga County corruption probe
The charges include bribery and conspiracy to commit bribery.
Dimora is expected to be in court later today.
These latest arrests comes after last week's indictment of former county Auditor Frank Russo. He is known as Public Official Two in the probe.