Bill Cosby’s long and controversial trial for sexual assault ended in a mistrial Saturday.

NBC News reports:

After more than 50 hours of deliberation over six days, the jury of seven men and five women was unable to reach a verdict, and Montgomery County Judge Steven O’Neill declared a mistrial.

“Do not in any way feel you have let the justice system down,” O’Neill told the jury.

The 79 year-old Cosby was accused of drugging and raping Andrea Constand, 44, at his home in Philadelphia in 2004. Cosby allegedly gave Constand what he told her were “herbal” pills to help her relax.

Cosby denies this and dozens of other accusations of sexual misconduct.

NBC News continues:

Montgomery County District Attorney Kevin Steele…