The parents of Patrick Lyoya voiced their deep anguish after Kent County Prosecutor Chris Becker announced last week he would not retry former Grand Rapids police officer Christopher Schurr in their son’s death.

A judge has declared a mistrial in the case against Christopher Schurr, the former Grand Rapids police officer who shot and killed Patrick Lyoya, after the jury was unable to reach a verdict.

Patrick Lyoya’s family is urging the prosecutor to refile charges after the jury came back deadlocked and a mistrial was declared.

The jury in the Christopher Schurr trial told the judge they were deadlocked, but the judge instructed them to continue deliberations.

Debate over deadly force continued through day four of Christopher Schurr's trial.

During afternoon testimony, jurors are shown the dash camera video from the initial traffic stop for the first time.

David Bukureo, a friend of Lyoya, testified about the events leading up to the shooting.

David Bukureo, a friend of Lyoya, testified about the events leading up to the shooting.

David Bukureo, a friend of Lyoya, testified about the events leading up to the shooting.

David Bukureo, a friend of Lyoya, testified about the events leading up to the shooting.

The attorney for Christopher Schurr made their opening statement to the jury, arguing that this is a case of self-defense.

Here are four takeaways from the prosecution's opening statement in the Patrick Lyoya murder trial.