Joseph Weekley (screenshot from CBS Local Detroit)

A judge has declared a mistrial in the involuntary manslaughter trial of Joseph Weekley, a Detroit police officer who fatally shot 7-year-old Aiyana Stanley-Jones during a 2010 police raid. Jurors failed to reach a verdict after a third day of deliberations, CBS News reports. A retrial date has not yet been set.

Weekley was charged with involuntary manslaughter. He accidentally fired his gun, killing Aiyana, while leading officers on a raid to find a murder suspect in 2010.

He said he pulled the trigger during a struggle with the girl's grandmother, but Mertilla Jones denied interfering with the gun and another officer testified there was no struggle over the weapon.

The raid was recorded for a police reality TV show, "The First 48," and Aiyana's family members have said they believe the officers involved were more concerned about how they appeared on TV rather than properly conducting their police work.

Read more at CBS.

Like The Root on Facebook. Follow us on Twitter.