As the FBI investigation continued at the Inland Regional Center Tuesday, the doors to the facility remained closed.
"It's frustrating," one Murrieta mother, who asked not to be identified, told NBC4. She added that her 4-year-old daughter has a rare disorder called Doose's Syndrome.
"Since the shooting happened ... we are kind of stuck in between. I feel sad for the victims … but we are the silent victims," she said.
Her daughter was approved to get a caseworker and on-call caretaker through the IRC earlier this year, according to her mother.
"The process is on hold now. With the holidays coming up we don't know what will happen."
The Inland Regional Center serves 31,000 people, according to its website.
In a statement released late Tuesday afternoon, IRC officials indicated they had planned to reopen this week.
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"However, the repair and cleanup process will take longer than expected," spokeswoman Leeza
Hoyt wrote, adding that the staff is in the process of setting up access at other locations for clients.
"The repair process [at the IRC] could be as long as the first of the year."