After decades of rumours, lawsuits and investigations, Bill Cosby could be headed to prison for the rest of his life, vindicating a multitude of women who doubted anyone would ever believe their word against that of "America's Dad".

A prosecutor has said Bill Cosby showed his true colours when he went on an expletive-laced tirade after his conviction on sexual assault charges.

Bill Cosby has been convicted of drugging and sexually assaulting a woman.

US jurors were shown Bill Cosby's travel records as his lawyers said he never visited his Philadelphia mansion in the month he is accused of drugging and molesting a woman there.

Bill Cosby's lawyers have lost another bid to cut his sex assault retrial short.

The judge in Bill Cosby's sexual assault retrial has rejected the defence's fifth bid for a mistrial.

The chief accuser at Bill Cosby's sexual assault retrial talked about framing a celebrity before going to police with her allegations in 2005, a key defence witness has testified.

The judge in Bill Cosby's sexual assault retrial has ruled jurors can hear the comedian's prior evidence about giving medication known as quaaludes to women before sex.

Bill Cosby's chief accuser spent late nights at the comedian's home, drove four hours to see him at a casino and called him twice on Valentine's Day, about a month after she claims he drugged and sexually assaulted her, jurors have learned.

Latest: Bill Cosby's chief accuser has given evidence at his sexual assault retrial, declaring that he knocked her out with three blue pills and then attacked her at his Philadelphia home in 2004.

Model Janice Dickinson has told a US jury that Bill Cosby raped her in 1982 after giving her a pill he claimed would ease her menstrual cramps but instead left her immobilised.

Three accusers confronted comedian Bill Cosby in court yesterday - with one calling him a "serial rapist" and another asking him through her tears: "You remember, don't you, Mr Cosby?"

A topless protester has been taken into custody after charging at Bill Cosby as he walked into a courthouse for his sexual assault retrial in Philadelphia.

A topless protester has been taken into custody after charging at Bill Cosby as he walked into a courthouse for his sex assault retrial.

Jurors in Bill Cosby's sex assault retrial will not hear why the case was initially dropped four weeks after his accuser came forward in 2005.

Bill Cosby's lawyers have challenged the prosecution's exclusion of a black woman from serving on the jury at his sexual assault retrial, alleging that the decision was made on the basis of her race.

The judge in Bill Cosby's sexual assault retrial has given his legal defence a huge boost, ruling his lawyers can call a witness who says the accuser talked about framing a celebrity before she went to police in 2005 with allegations about the comedian.

Prosecutors and lawyers for Bill Cosby have sparred over whether jurors at his sexual assault retrial will hear lurid deposition testimony from the comedian about giving quaaludes to a string of women before sex.

Bill Cosby's lawyers are fighting to block a parade of women from giving evidence against him at his sexual assault retrial, calling them "ancient allegations" that would prejudice the jury against him.

Bill Cosby's lawyers have said that they would seek to delay his April 2 sexual assault retrial if some of his other accusers are given a chance to give evidence.

A US federal appeals court has refused to revive a defamation lawsuit filed against Bill Cosby by a woman who said he raped her decades ago.

Bill Cosby wants a judge to approve a swap that will give him a fresh legal team, which includes the high-profile lawyer who won an acquittal in pop superstar Michael Jackson's child molestation case, before his sexual assault retrial.

Bill Cosby's "town hall" tour is unlikely to happen before his retrial on sex assault charges in Pennsylvania, one of his lawyers has said.

Bill Cosby will organise a series of lectures to help educate young people about problems their misbehaviour could create and other issues, a spokesman for the entertainer said.

Bill Cosby's sexual assault trial ended in a hung jury because two members refused to convict the 79-year-old after 52 hours of deliberations, one juror has said.

Bill Cosby's sexual assault case in Pennsylvania has ended in a mistrial, but the comedian's civil lawyers still are fighting lawsuits against him by 10 women.

Bill Cosby's trial raced towards a close, with his lawyer telling the jury that the comedian and the woman who accuses him of drugging and molesting her more than a decade ago were lovers who had enjoyed secret "romantic interludes".

The defence says it is calling just one witness.

Bill Cosby says he apologised to the family of the woman he is accused of drugging and assaulting only because her mother thought he was "a dirty old man", according to testimony read to the jury.

The woman who accuses Bill Cosby of sexual assault has denied any prior romance between them.

Bill Cosby has arrived at a court in Philadelphia for the start of his sexual assault trial.

The judge in Bill Cosby's criminal case expects the trial to last about two weeks.

Prosecutors are trying Bill Cosby for an alleged 2004 sexual assault only so that a "bandwagon" of women can pursue old, unsubstantiated claims that the 79-year-old comedian drugged and assaulted them, a defence lawyer has told a court.

Damaging evidence given by Bill Cosby in an accuser's lawsuit, including admissions that he gave young women drugs and alcohol before sex, can be used at his sex assault trial, a judge has ruled.

Bill Cosby's eyesight has deteriorated to the point where he cannot identify his accusers in photographs or otherwise help with his defence, his lawyers said as they waged a multi pronged effort to get the sexual assault case against the 79-year-old comedian thrown out.

Bill Cosby's lawyers have pressed a judge to keep the comedian's damaging deposition in a decade-old lawsuit out of his sexual assault trial, saying Cosby agreed to answer questions under oath after being assured he would not be charged with a crime.

Lawyers for Bill Cosby have suggested for the first time that racial bias is to blame as he faces the prospect of 13 women - 12 of them white - giving evidence in court that he drugged and molested them.

Prosecutors in the US have said they want 13 other women who have accused Bill Cosby of molesting them to testify at his upcoming sex assault trial.

A Pennsylvania judge has denied Bill Cosby’s latest bid to have sexual assault charges against him thrown out. The 78-year-old comedian must stand trial.

A woman who has accused comedian Bill Cosby of sexually assaulting her will not have to testify before his trial in a preliminary hearing.

Actor Bill Cosby has been ordered to stand trial in the lone criminal case lodged amid dozens of accusations that he molested women.