District Attorney Kevin Steele to the court that they 'want to retry the case'.
"We commend those prosecutors who raised awareness that one of the hallmarks of drug-related sexual assaults is the effect the drug has on the victim's memory and ability to recall and were nonetheless willing to present this evidence to the jury", she said in a statement that her attorneys released to U.S. media.
In its final statements, the prosecution repeatedly referred to a deposition in a 2005 civil case filed by Constand, in which Cosby testified that he had touched Constand beneath her clothes after giving her pills.
Cosby's team declared victory and went on the attack.
Cosby did not testify and the defence spent just minutes presenting their case, calling one witness and arguing that the evidence just did not exist to convict their client.
Bill Cosby's trial on sexual assault charges has ended without a verdict after jurors failed to break a deadlock.
Troiani acknowledged the difficulty of the case, given the passage of time and the impact of the alleged drugging on Constand's ability to recall details.
The trial centered around Andrea Constand, the former director of operations for Temple University's women's basketball team, who claimed she was drugged and sexually assaulted by Cosby in January 2004 at his home near Philadelphia.
But the jurors struggled with their verdict, telling the judge on day four of the trial that they were at impasse. Time will tell whether prosecutors will bring another case against the famed TV comedian.
Lena Dunham is among those high profile observers of the case speaking out about the mistrial result.
Currently, seven women have defamation suits pending in MA, while three more have defamation or sexual battery suits pending in California.
Cosby's wife, Camille, who attended just one day of the trial, issued a fierce statement on Saturday, read out by a representative. She also asked for privacy for her and her family.
"How do I describe the counsels for the accusers? It has been restored".More news: Trump and Modi hold first talks at White House
He co-starred in the 1960s espionage show "I Spy", the first black performer to star in a weekly American TV dramatic series.
But it was Cosby's reputation as a public moralist who urged young people to pull up their saggy trousers and start acting responsibly that prompted a federal judge to unseal portions of an explosive deposition he gave more than a decade ago as part of Constand's civil lawsuit against him.
"Try him again. Heart goes out to women who came forward".
She said that Cosby brought her three blue pills, saying they would help her relax and assuring her they were safe.
Constand alleges she then became incapacitated and was led to a couch, where Cosby is alleged to have fondled her breasts, put his hands inside her trousers, and penetrated her vagina with his fingers. "The jurors, they used their power to speak". "Do not in any way feel that you have let the justice system down", the judge told them. 'How do I describe the judge? I felt his hand inside my vagina, moving in and out.
Prosecutors immediately said they would seek a retrial.
"I f the court allows more accusers to testify next time, it might make a difference", said Gloria Allred, who represents Kelly Johnson, the only other alleged victim allowed to testify at this trial.
None of the jurors, who were from the Pittsburgh area approximately 300 miles away from the courthouse, commented after the trial. "Once people say they are deadlocked, then what really becomes the reason for further deliberations?"
It was the only criminal case to arise from allegations from more than 60 women that cast Cosby - married more than 50 years - as a serial predator who gave drugs to women before violating them.
Dozens of women have come forward to say he had drugged and assaulted them.
But the contents of those transcripts - including Cosby's admission that he had obtained drugs in the past to use with women he hoped to seduce - piqued the interest of investigators in Montgomery County, who reopened the case in 2015.
Three more have defamation or sexual battery suits pending in California.