Police say the victim was stabbed at least 14 times after an argument turned into a fight on a Valley Metro light rail car.

TEMPE, Ariz. — An Arizona woman accused of stabbing another passenger at least 14 times on a Valley Metro light rail train in Tempe says she acted in self-defense after the other rider started the fight, according to police records and statements made in court.

The case has drawn attention because investigators say surveillance video captured much of the Feb. 12 attack and because Wallace’s lawyer has argued that other passengers watched without stepping in. Prosecutors have charged Allante Wallace, 34, with aggravated assault with a deadly weapon. The 42-year-old victim survived injuries that police described as life-threatening, setting up a legal fight over what happened in the first moments of the confrontation and whether Wallace’s use of a knife was justified.

Police say the violence broke out at about 9:40 p.m. on an eastbound light rail train traveling near Apache Boulevard and Dorsey Lane in Tempe, not far from Arizona State University and the Loop 101 corridor. According to court records, witnesses saw Wallace and the other woman in a verbal dispute that turned physical. Investigators said surveillance video showed the victim pointing at Wallace, moving toward her and standing over her while Wallace was still seated. The video then showed the two women fighting, with the victim pulling Wallace’s hair before a knife appeared. A witness told police the victim confronted Wallace before the stabbing began. After the attack, police said, Wallace left the rail car carrying the knife in one hand, a pizza box in the other and a white backpack with a cartoon design.

Authorities say the victim suffered multiple wounds to the thighs, left breast, forearm, abdomen, armpit and jaw. Court papers describe several blows as overhead stabbing motions delivered while the victim was on her back in a defensive posture. Investigators said Wallace continued stabbing even after the victim let go of her hair. The injured woman was found bleeding heavily and was taken to a hospital. Early public statements described her condition as stable, but later court records said the injuries were life-threatening. One unresolved issue is where the knife came from. Police said video showed Wallace picking up a red-handled knife from the train floor before using it. That detail has become central to the case because it leaves open whether Wallace brought the knife onto the train, whether it was dropped during the struggle or whether it came from another source not yet explained in public records.

The confrontation happened on a public transit line that carries riders through Phoenix, Tempe and Mesa, and the location added a layer of scrutiny to an already violent case. Valley Metro rail serves dozens of stations across the metro area, including stops used by students, workers and late-night riders in Tempe. Police said the stabbing appeared to be an isolated incident, but the case still raised questions about how quickly a dispute inside a train car can turn deadly. Public records so far do not explain what the women were arguing about before the fight or whether they knew each other. They also do not identify the victim by name. Those gaps matter because the legal dispute is likely to turn on sequence and intent: who initiated the confrontation, when the threat rose to a level that could support self-defense, and whether the force used after that point was excessive.

Wallace did not stay at the scene for officers, according to investigators. Police said she later contacted a defense attorney and agreed to turn herself in with counsel. In a statement summarized in the probable cause affidavit, the attorney said Wallace had been attacked, defended herself and then left the train in shock. Wallace declined to give further statements to police, the affidavit said. At a later court appearance, her lawyer again framed the stabbing as self-defense and said other passengers were “just watching” instead of helping to stop the fight. A judge set Wallace’s bond at $350,000. Publicly available court information reviewed after the hearing did not show a later listed hearing date, and no additional charges beyond aggravated assault with a deadly weapon were reflected in the records reviewed for this report. Investigators have said the case remains open, which leaves room for prosecutors to refine the charging decision as they review video, witness accounts and medical evidence.

The details that stand out are stark and ordinary at the same time: a crowded train, a late-night argument, a steak knife with a red handle, a pizza box and a backpack decorated with a cartoon character. Those objects have become part of the public account because investigators used them to identify Wallace’s movements after the stabbing. The scene inside the rail car, though, remains only partly visible through short summaries in court documents. No full public video has been released in the records reviewed, and the bystanders described by Wallace’s lawyer have not been publicly identified. That means some of the most disputed parts of the case are still filtered through police descriptions and defense claims rather than open courtroom testimony. For now, the public record shows this much: one woman survived a brutal stabbing, another woman was jailed on a felony assault charge, and the final legal question will likely depend on what the video shows second by second.

Wallace will remain jailed unless bond conditions are met. The next milestone is a scheduled court update or hearing date, once it appears on the public docket and the case moves beyond its initial charging stage.