Police say Rachell Summers and the 19-year-old accused of killing her were strangers; prosecutors allege he had planned violence before seeing her.
CAPITOLA, Calif. — Rachell Summers went to Capitola Mall on July 20 to pick up a paycheck from the art gallery she managed and then started walking toward a nearby bank. Within minutes, the routine errand became a homicide scene, a mall lockdown and the start of a murder case that remains pending.
The first public facts were spare. Police said officers were dispatched at about 12:47 p.m. to a report of a stabbing near the mall’s food court exit. They found Summers, 73, on Clares Street suffering from multiple stab wounds. Officers, firefighters and paramedics attempted lifesaving measures, but she died at the scene. Investigators soon said the attack appeared to be random and that they had found no prior relationship between Summers and Tyler Leibelt, then identified as a 19-year-old Santa Cruz man arrested nearby.
As officers secured the mall, shoppers and workers were pushed out of the ordinary rhythm of a Monday afternoon. The shopping center was locked down and evacuated while police searched the surrounding area. Officers located Leibelt about half a mile away in the 1400 block of 41st Avenue and took him into custody. Police later asked witnesses and anyone with photographs or video to provide information. The mall reopened after the immediate response, but the killing left a visible memorial outside and temporarily closed Art of Santa Cruz, the nonprofit gallery where Summers had been a familiar presence.
The story changed substantially once prosecutors filed documents describing what they say happened before the stabbing. According to those filings, Leibelt told investigators he had begun thinking about killing someone while at Cabrillo College earlier that day. Prosecutors allege that he turned off his phone, traveled toward Capitola and purchased two knives. The documents say he considered attacking several other people but did not do so. Eventually, prosecutors allege, he saw Summers walking outside the mall and chose her even though the two had no known prior connection.
That alleged sequence is why the case is described in two ways that can sound contradictory but are not necessarily so. Police call the attack random because investigators say Summers was not targeted because of a relationship, dispute or known history with the accused. Prosecutors, meanwhile, allege that the violence itself was planned in advance and that Leibelt was looking for someone to attack. In other words, the victim may have been random even if the alleged intent was not. Whether prosecutors can prove that theory is a question for the court, and Leibelt has pleaded not guilty.
Investigators also say the events after the stabbing left a trail that quickly led to an arrest. Court filings described by local news outlets allege that Leibelt ran back through the mall, discarded a knife and later went to a nearby gas station. Authorities say he then called 911, admitted that he had killed a woman and asked police to come get him. Officers arrested him shortly afterward. Statements attributed to him in court documents form a major part of the prosecution’s public account, but they remain evidence to be tested through the legal process rather than a substitute for a conviction.
The victim’s identity brought another layer to the story. Summers was not simply a shopper passing through the mall; she was the manager of Art of Santa Cruz, a gallery built around the work of local artists. Co-workers said she had returned that day specifically to collect her paycheck. At 73, she remained active in the organization and was remembered for the energy she gave to artists and the store. She was also a writer and illustrator who had been working on a children’s book. Her family said she had recently become a grandmother, a milestone that became central to tributes after her death.
Friends and relatives responded by creating memorials and an education fund for Summers’ grandson. The gallery closed for several days, and flowers and other tributes appeared near the mall. Her daughter described her in local reporting as a kind, longtime community member who supported local artists. Those remembrances shifted some of the attention away from the accused person’s alleged statements and toward the person who was killed. In a case driven by unusually stark allegations about motive, the local response has repeatedly returned to Summers’ work, family and creative life.
Another part of the case emerged from records predating July 20. Santa Cruz County sheriff’s deputies had sought an emergency gun violence restraining order against Leibelt in November 2025, according to court documents reported after the homicide. The order cited statements about mass violence and writings about killing people. A related juvenile matter was later dismissed, and public reporting has not established why. In August, defense lawyers asked a judge to seal an earlier juvenile protective-order record, saying its contents could prejudice future jurors. The judge granted the request.
The sealing dispute matters because it highlights the difference between information that is newsworthy and evidence that can properly be used to decide a criminal charge. Some details about the older record were already reported before it was sealed, but the current case still has to be judged on admissible evidence and the charges filed in adult court. The earlier juvenile proceeding did not produce a conviction in the murder case, and its dismissal does not resolve what happened on July 20. The defense and prosecution will have separate opportunities to challenge and present evidence as the case advances.
On Aug. 19, nearly a month after the killing, Leibelt entered a not-guilty plea in Santa Cruz County Superior Court. He also denied allegations involving use of a deadly weapon and lying in wait. He remains held without bail. The plea converted a case that had been dominated by police statements and prosecution filings into a more defined pretrial posture: the defense is contesting the charge, and prosecutors must now establish enough evidence to move the case forward. A preliminary hearing is scheduled for Oct. 8.
The timeline from paycheck pickup to courtroom plea has therefore unfolded in distinct stages. First came the attack, emergency response and arrest. Then came court filings describing alleged planning, possible earlier targets and statements after the killing. Next came attention to the 2025 restraining order and the legal fight over the juvenile record. Now the focus is turning toward what prosecutors can prove in court. Each stage has added information, but none has changed the basic due-process point that Leibelt is accused, not convicted, of Summers’ murder.
For Capitola, the most enduring fact may remain the simplest one: a woman known for running a local art gallery left work-related business on a weekday afternoon and never reached the bank. Police say she had no known connection to the person accused of attacking her. The criminal case will continue to examine intent, evidence and responsibility, while Summers’ family and colleagues continue to mark the loss through memorials and support for her grandson.
Currently, Leibelt is being in Santa Cruz County Jail without bail as of Aug. 28. His next reported court appearance is the Oct. 8 preliminary hearing, and no trial date has been announced in the sources reviewed. The allegations remain unresolved, while Art of Santa Cruz and Summers’ family continue to preserve a public memory of her beyond the circumstances of her death.
Author note: Last updated Aug. 28, 2026.