This comes from Observer.com and lays it all out.
Comey is a political Lackey and never had any intention of doing a real criminal investigation of Hillary Clinton.
"From the moment the EmailGate scandal went public more than a year ago, it was obvious that the Federal Bureau of Investigation never had much enthusiasm for prosecuting Hillary Clinton or her friends. Under President Obama, the FBI grew so politicized that it became impossible for the Bureau to do its job – at least where high-ranking Democrats are concerned."
"This was in fact so highly irregular that Jason Chaffetz, chair of the House Oversight Committee, pronounced himself “absolutely stunned” by the FBI’s granting of immunity to Cheryl Mills – which he learned of only on Friday. “No wonder they couldn’t prosecute a case,” Rep. Chaffetz observed of Comey’s Bureau: “They were handing out immunity deals like candy.”"
Remember, folks, it was most likely Hillary Clinton who ordered this...
and the FBI enthusiastically delivered.