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West Covina Man Charged With Assault After Allegedly Attacking Grandparents on New Year's Day

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Published on January 04, 2026
West Covina Man Charged With Assault After Allegedly Attacking Grandparents on New Year's DaySource: U.S. Air Force photo by Airman 1st Class Gustavo Castillo, Public domain, via Wikimedia Commons

A disturbing family incident took place on New Year's Day in West Covina, requiring police and medical response, resulting in two elderly individuals being hospitalized, one of whom remains in critical condition. The West Covina Police Department reported that officers and fire department personnel arrived at the scene in the 1700 block of W. Mossberg Ave at around 12:28 pm after getting reports of a family disturbance.

Following the altercation, authorities discovered two severely injured victims, aged 77 and 74; they were promptly sent for treatment at a local hospital. One was released after treatment, but the other still lies within the walls of medical care, their condition stark against the prospects of recovery. Detectives from the West Covina Police Department began an investigation that led to the identification of the suspect, 28-year-old Joshua Philip Day, a resident, who had reportedly assaulted his grandparents following a heated disagreement, and after the assault, he barricaded himself within the home.

A Special Weapons and Tactics (SWAT) team was called in response to the situation, leading to a tense four-hour standoff, after which Day was taken into custody without further incident. The gravity of the charges against him saw his bail set at a significant sum – $200,000 – by local authorities, as confirmed by Sergeant Stephen McLean in a statement released by the department.

With the initial findings of the investigation at hand, Day is now facing serious charges, and his arraignment is scheduled for January 6th, 2026 where he will appear before the West Covina Superior Courthouse, this legal proceeding will serve as the opener for what is likely to become a lengthy legal battle that may draw attention to issues underlying domestic violence, and the support systems available to families caught in its mire. The case reference number for the incident is WCPD Case# 26-00005, and further updates are expected as the investigation progresses and more information becomes available.