4. What the jury won’t hear

taking place.

The people who lived in the apartment, including Brough and Piring, may have thought Jones and his friends were crashing the party.

Or one of Jones’ group may have rung the doorbell as a prank, according to a police report. Whatever triggered the fight, Jones was hit in the face, and the chase began.

3. What gets heard in court

of the other victims who had marijuana metabolites in their urine.

Prosecutors were successful in keeping out descriptions of fights and wild parties at the apartment complex, known as “the courtyard,” where the melee began.

The prosecution asked the judge to disallow statements Jones made to a student who took his gun after the shooting. Police reports say Jones told the student he was acting in “self-defense.”

Prosecutors say that “even if uttered within minutes of shooting the four unarmed victims, (the statements) were concocted after a period permitting conscious reflection.” Still, the judge would not issue a blanket ruling on excluding from the jury everything Jones said to explain himself. Instead, the attorneys are expected to raise the context of any given statement during trial, at which point the judge will decide relevancy.

5. What sentences are possible?

Under Arizona law, if found guilty of premeditated murder, he would face a mandatory sentence of natural life in prison. The jury could come back with a lesser verdict such as second-degree murder or manslaughter, which could carry a prison sentence ranging from a few years to more than 20 years. The jury could also find him not guilty.

As a hedge against leniency, prosecutors filed a motion informing the defense that even if the jury finds Jones guilty of the lesser crime of manslaughter, instead of first-degree murder, the prosecution would seek an aggravated, or harsher, sentence because of the pain and suffering inflicted on the victims.