US entertainer Bill Cosby's lawyers are set to argue that prosecutors are reaching back to the "casting couch" era to round up female accusers and build a "stale" sexual assault case against him.

Bill Cosby has lost an attempt to have sexual assault charges against him thrown out. In a ruling, the judge who refused to dismiss the case earlier this month denied Cosby’s appeal against that decision.

Bill Cosby’s top legal adviser has said he never would have let the comedian testify in a 2005 lawsuit if he thought Cosby could still face sexual assault charges in the matter.

The former district attorney who declined a decade ago to bring sex-crime charges against Bill Cosby has testified that he believes his decision is binding on his successors and forever closes the door on prosecuting the comedian.

A Philadelphia man killed his wife with a chainsaw and then turned the machine on himself in a grisly murder-suicide, prosecutors said.