Camille Cosby, right, arrives with husband, Bill, at the Montgomery County Courthouse in Norristown, Penn., June 12.
For now, Bill Cosby walks away a free man. He also dismissed the district attorney's pledge to retry the case.
O'Neill criticized the Cosby team for what he says is a "misperception that there's a time limit" on how long deliberations can last.
"Mr. Cosby's power is back".
"I remind everyone that this is not vindication or victory", Montgomery County Judge Steven T.O'Neill said Saturday.
Dickinson and her attorney Lisa Bloom sued Cosby for defamation in May 2015, saying Singer's comments hurt her professionally and personally.
Sixty women, including Constand, have accused Cosby of drugging and/or sexually assaulting them, or attempting to do so. He said he told her to tell the truth because "the truth is easy". Reportedly, they wept and rallied around her as the verdict was read.
Less than 48 hours later, and working into the weekend on the 11th day of the trial, the panel informed the judge that they were still deadlocked on all three counts of indecent aggravated assault. In a note to the judge, Variety reported, the jury foreperson wrote that they "cannot come to a unanimous consensus on any of the charges". He told them that they should report to him if they are still deadlocked on some or all of the charges after further deliberations.
Cosby tweeted the message on Friday shortly after jurors asked to review his lurid testimony about giving quaaludes to women he wanted to have sex with.
The judge sought to comfort the jurors, at least one of whom fought back tears, calling their epic deliberation "one of the more courageous acts, one of the more selfless acts that I've seen in the justice system". I can talk down to you because I had a successful sitcom.' Yeah, but you raped women, Bill Cosby.
Linda Kirkpatrick, one of the women accusing Cosby of sexual assault, told CNN shortly after the mistrial the entire ordeal had forced those accusing the star to relive a awful time in their lives.
Cosby says he gave Benadryl to Constand before their 2004 sexual encounter, but prosecutors suggest it was something stronger that left her incapacitated.
Cosby had broken barriers as the first black actor to star in a network show, "I Spy", in the 1960s and, two decades later, created the top-ranked "Cosby Show".
Cosby forged a special connection with children, dispensing laughs and wisdom from a cartoon junkyard in 1970s Saturday morning staple "Fat Albert and the Cosby Kids", and even in commercials for Jell-O. But he also admitted obtaining sedatives with a view to having sex.
Prosecutors argued Cosby drugged and sexually assaulted Constand. Most of the other incidents allegedly occurred years ago, outside the statute of limitations.
McMonagle, in his closing argument, pointed out that Constand telephoned Cosby dozens of times after the alleged assault.
"Our job in this, as prosecutors, [is to] take on the tough cases", said Steele.