A community is on edge. A family is in pain. And a 14-year-old girl is still missing.
Joslynn Mousseau, just 14 years old, has been missing since March 18, 2026, in Sioux Falls, South Dakota. Days have passed, and with each hour, concern continues to grow. The Sioux Falls Police Department has confirmed her disappearance, and now both authorities and loved ones are asking for the public’s help in bringing her home safely.
Because in cases like this, time matters.
According to the National Center for Missing & Exploited Children (NCMEC), Joslynn may still be in the local Sioux Falls area—or she could have traveled to Rapid City, South Dakota. That uncertainty only increases the urgency. The search is no longer confined to one place. It’s expanding, and that means awareness needs to expand with it.
Here’s what we know:
Joslynn may have purple-dyed hair and may go by the name “Jos.” She was last seen wearing dark-washed ripped jeans, a red Nike shirt, and a black zip-up jacket. These details may seem small—but in situations like this, they can make all the difference.
Someone, somewhere, may recognize her.
But this story is about more than just a description.
It’s about a girl who is deeply loved.
Her aunt, Kenzie Lorraine, has made an emotional and urgent plea that captures the weight of this moment. She describes Joslynn not just as family, but as part of a close-knit team—a bond that makes her absence feel even more devastating.
“Please help bring my beloved niece back home… We’re not just family, we’re a team, and her absence is felt deeply. Given our bond, this disappearance isn’t like her at all, and as of right now, we’re all consumed by concern for her safety.”
Those words say everything.
This isn’t normal. This isn’t expected. And that’s what makes it even more frightening.
When a young person disappears without warning—especially when it’s out of character—it raises serious concerns. It suggests that something may be wrong, that help may be needed, and that action cannot be delayed.
Right now, Joslynn’s family is living through uncertainty that no one should ever have to face. The waiting. The not knowing. The constant hope mixed with fear. Every passing day feels heavier than the last.
And while law enforcement is actively investigating, they cannot do it alone.
This is where the public becomes critical.
In today’s world, awareness spreads faster than ever. A single post can reach thousands. A shared image can cross state lines in minutes. Someone scrolling through their phone might recognize a face, remember a moment, or notice something that suddenly clicks.
That’s how cases are solved.
That’s how missing children are found.
This is why sharing Joslynn’s story matters so much right now.
If you are in South Dakota—or even nearby—stay alert. Pay attention to your surroundings. Think back to the past few days. Did you see someone who matched her description? Did anything seem unusual?
If you’re not in the area, you can still help.
Share her story. Keep her name circulating. The more people who see her face, the higher the chances that someone with information will come forward.
And remember—no detail is too small.
Sometimes it’s not the obvious clue that breaks a case. It’s the small, seemingly insignificant detail that leads to something bigger. If something feels off, report it. Trust your instincts.
Authorities are urging anyone with information to act immediately:
📞 Sioux Falls Police Department: 1-605-367-7000
📞 National Center for Missing & Exploited Children: 1-800-843-5678
Do not wait. Do not assume someone else has already called.
Because they might not have.
At the center of all this is a 14-year-old girl who deserves to be safe, to be found, and to be back where she belongs—with her family.
This isn’t just a news story.
This is a real life. A real family. A real moment where the world can come together and make a difference.
Joslynn Mousseau is still missing.
Let’s not let her story fade.
Let’s raise our voices, share her name, and do everything we can to bring her home safely.
Because somewhere out there, someone knows something.
And that one piece of information could change everything.
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