UPDATE: Tamera Mowry just revealed that her niece was one of the victims.

"Our hearts are broken. We just learned that our Alaina was one of the victims of last night's shooting at Borderline Bar in Thousand Oaks. Alaina was an incredible young woman with so much life ahead of her and we are devastated that her life was cut short in this manner."

ORIGINAL STORY:

We're praying this turns out OK.

Tamera Mowry and her husband Adam Housley are searching for their 18-year-old niece Alaina Housley, who is missing in the wake of the shooting at a country dance bar in Thousand Oaks, California on Wednesday night.

Housley's Pepperdine roommate Ashley sent out a tweet looking for her, and the Sister Sister star saw it and reached out.

"She is wearing denim shorts, a blue flannel and sneakers, pls let me know if you know anything,” Ashley tweeted. “Ashley this is her aunt Tamera Mowry Housley. Can you please DM me your information?” the actress responded.

"I've been in contact with Adam, unfortunately there's nothing new to report at the moment," the roommate followed it up. "Ok. Thank you. Is she the only one unaccounted for?" Mowry asked. "Yes, all the other girls are safe," Ashley wrote back.

At least 12 people, including a sheriff’s deputy, were killed at Borderline Bar & Grill after 11 p.m. on Wednesday by Marine Corps veteran Ian David Long, who died at the scene.

Celebrities are expressing their grief over yet another senseless tragedy on social media.
    Ellen Degeneres: "Another senseless act. 13 dead in another mass shooting. Families devastated by violence. Again. My heart is with the people of Thousand Oaks, and with everyone fighting to make change."

    Sophia Bush: "The news coming out of Thousand Oaks is heartbreaking. And to think that there were Route 91 survivors there, who’ve been traumatized all over again? I cannot fathom it.@SenFeinstein has provided some immediate assistance information below... #EnoughIsEnough."

    Ryan Seacrest: "My heart is heavy with news of another mass shooting in Thousand Oaks. Praying for the lives lost and those affected, and for the change we need to end gun violence. #EnoughIsEnough."

    Amber Tamblyn: "I am a born and raised Southern California girl, third generation. The mass shooting in Thousand Oaks breaks my heart, but more than anything it makes me utterly furious. Will your child be next? Will mine? Who has to die in order for you to care enough to change things?"

    Josh Groban: "Overwhelmed with sadness for Thousand Oaks and the victims of this horrific shooting. Overwhelmed with grief from how many of these messages I’ve typed out this year alone. I wish the victim’s families peace and answers in this time of tragedy."

    Lucy Hale: "So sad about the tragedy in Thousand Oaks. So many of my friends & I have frequented that bar . We live in a world where devastation like this can happen anywhere/anytime. I’m so sorry to the victims & everyone involved. And I’m so sorry pain like this occurs 💔."

    Josh Gad: "We are on a hamster wheel of insanity. Another day of grief. Another day of outrage. Another day of families unnecessarily learning their loved ones are dead. But, don’t worry, I remember from all of the other times we’ve done this...”guns aren’t the problem.”

    Mira Sorvino: "I can’t even. Devastated for the victims. At a loss, but know that our government MUST DO SOMETHING TO STOP THIS HORRIFIC GUN VIOLENCE!!!! #GunReformNow."

What is happening in the world?!