A judge has declared a mistrial in the first degree murder trial of Keshroy Bristol, this after the jury failed to reach a unanimous verdict after almost 23 hours of deliberation.

The jury agreed Friday afternoon that they were at an impasse, but Justice Paul Belzil advised them to continue deliberating to see if they could come to a unanimous verdict.

However, after 23 hours of deliberation the jury was unable to do so.

Bristol is accused of strangling his 49-year-old mother Beverly Parker in February of 2008.

In a videotaped confession shown at the trial, Bristol first denies his involvement before he eventually confesses to strangling his mother to death.

"I did not kill my mother," Bristol said.

Four hours after the interview began, another officer joined in and started questioning Bristol a little more aggressively.

"You hit her?" said the detective.

"I hit her and I just started strangling her and she fell on the spot where she landed," Bristol replied.

"What did you use to strangle her?" the detective asked. "A rope," said Bristol.

The young man then tells the detective, officers would find the rope he used hidden in a couch, along with rubber gloves in a VCR and dark clothing in the basement.

The jury also heard Bristol say that his ex-girlfriend asked him if he wanted to kill his mother and also put forth the idea of strangling her.

Delmy Vega-Medrano told the jury she didn't get along with Bristol's mother.

Vega-Medrano admitted she told her ex-boyfriend that she wanted his mother dead. She told the court she disliked the woman because she was attempting to adopt the baby daughter she had with Bristol.

Bristol now claims his ex-girlfriend, Vega-Medrano, killed his mother. The case has been adjourned until Oct. 30 when a new trial date will be set.

Bristol remains in custody at the remand centre.