sumed legal guardianship.

Officials reported that the children suffered severe verbal and physical discipline.

Public records indicate Zhang owns a surrogacy agency previously known as Mark Surrogacy, which now operates under the name Future Spring Surrogacy. A woman who carried one of the children revealed she conceived via in vitro fertilization and transferred custody through the agency, believing at the time that the couple had only one child.

Additionally, Xuan previously drew law enforcement scrutiny for owning an El Monte property allegedly utilized as a casino and an illegal psilocybin mushroom growing operation.

What we don't know:

Authorities have not established a clear motive explaining why the couple sought to house and maintain legal guardianship over such a large number of children.

It's unclear how long the suspected abuse had been occurring prior to the medical emergency in May 2025.

Officials have not disclosed the current legal status or precise whereabouts of the six children who were relocated outside the primary residence before protective custody was executed.

What they're saying:

Arcadia Police Department Lieutenant Kollin Cieadlo highlighted the delay in medical treatment following the assault on the infant.

Cieadlo stated that despite being made aware of the incident, the child's parents failed to seek timely medical attention, noting the child was not transported to the hospital until two days later after the onset of seizures.

Cieadlo also explained that the Department of Children and Family Services responded to the residence as a result of the investigation, resulting in the remaining children being taken into protective custody.

What's next:

Los Angeles County District Attorney Nathan Hochman is scheduled to address the case during a news conference at 11 a.m.

Law enforcement agencies continue to search for the suspect identified as the nanny, who remains at large after fleeing to China.

The Los Angeles County Department of Children and Family Services will oversee the placement, care, and ongoing evaluation of the 21 children involved in the case.