Celaya is booked on second-degree murder.

A booking and a self-defense claim are competing process narratives. Neither is a verdict. Mateo Celaya, 26, is in the Maricopa County jail on a second-degree murder booking in the death of Fred Celaya, 75, his grandfather, with bond set at $750,000. What he told 911, and what detectives say about a cane and about injuries, are accounts in the paperwork.

Court paperwork, as reported by Arizona's Family, says a relative found Fred Celaya's bloodied body at an apartment in the area of 10th Street and Devonshire Avenue, just north of Indian School Road, shortly after 6:30 p.m. Wednesday. About 20 minutes later, Mateo Celaya called 911 and said he had stabbed his grandfather with scissors. He told the operator he had been using drugs for several days and claimed self-defense because he thought his grandfather was going to kill him. A 911 account and a self-defense claim are what he said. They are not a finding that he acted in self-defense, and they are not a finding of murder.

Police said he admitted his grandfather could not move very well because he used a cane or a wheelchair, and that they did not find injuries on Mateo Celaya consistent with fighting an armed attacker. Those are detective statements in the reported paperwork. They are not a jury's rejection of self-defense. Phoenix police are recommending a murder charge. A recommendation is a charging request. He was booked into the Maricopa County jail on Thursday and, because of an administrative error, rebooked early Friday around 3:30 a.m. A judge set bond at $750,000. All defendants are presumed innocent until proven guilty in a court of law.