Sioux Falls, South Dakota, is a city shaken by heartbreak—and now, gripped by urgency.
Just as the community was mourning the devastating loss of 14-year-old McKenna Wendel, another family has been thrown into a nightmare no parent should ever have to face. On March 19, 2026, news broke that McKenna had been found dead after being missing for nearly a week. The grief spread quickly, leaving a city trying to process an unimaginable tragedy.
But even before that pain could begin to settle, another crisis emerged.
On March 18, just one day before McKenna’s heartbreaking discovery, another 14-year-old girl disappeared from the same city.
Her name is Joslynn Mousseau—known to friends and family simply as “Jos.”
Now, Sioux Falls finds itself not only mourning, but searching.
🚨 Who Is Joslynn Mousseau?
Joslynn is just 14 years old.
She has pierced ears and a piercing in her right nostril. Her hair may currently be dyed purple—details that could make all the difference in recognizing her. Authorities believe she may still be somewhere in the Sioux Falls area, but there is also concern that she could travel west to Rapid City, approximately 350 miles away.
Right now, every second matters.
The Sioux Falls Police Department is actively handling the case, working to gather information and locate Joslynn as quickly as possible. But in situations like these, law enforcement alone is not enough.
They need the public.

đź’” A City Already Carrying Too Much
What makes this situation even more heartbreaking is the timing.
Sioux Falls is still grieving. Families are still hugging their children a little tighter. Schools, neighborhoods, and local communities are still trying to come to terms with the loss of McKenna Wendel.
And now, another young life is missing.
The emotional weight is overwhelming.
It’s not just fear—it’s exhaustion, sadness, and a desperate need for hope. People are asking themselves how something like this could happen again, so soon, in the same place.
But amid that pain, something powerful is beginning to rise:
Community.
🤝 The Power of People Coming Together
In moments like these, communities often reveal their true strength.
Neighbors start sharing posts. Friends spread awareness. Strangers become allies in a shared mission—to bring a child home safely.
That’s what Joslynn needs right now.
She needs eyes looking out for her.
She needs people paying attention.
She needs her story to reach as far and as fast as possible.
Because sometimes, one share can lead to one sighting.
And one sighting can change everything.
📢 What You Can Do Right Now
If you are in Sioux Falls, Rapid City, or anywhere in South Dakota, your awareness matters.
Look closely. Pay attention to your surroundings. Share Joslynn’s information with friends, family, and online communities.
If you believe you have seen her or have any information about her whereabouts, please act immediately:
📞 Sioux Falls Police Department: (605) 367-7000
📞 National Center for Missing & Exploited Children (NCMEC): 1-800-843-5678
🆔 NCMEC Case #: 2080989
🆔 NCIC #: M758812101
No piece of information is too small.
🌍 Why This Story Matters to Everyone
It’s easy to think that something like this only affects one city.
But it doesn’t.
This is about every parent who worries when their child doesn’t answer the phone.
Every friend who checks in just to make sure someone got home safely.
Every community that understands how quickly life can change.
Joslynn is not just a name in a report.
She is someone’s daughter.
Someone’s friend.
Someone who deserves to be found, safe and alive.
❤️ Holding Onto Hope
Right now, Sioux Falls is standing at a crossroads between grief and hope.
They have already lost one young life.
They cannot lose another.
And while fear may be present, so is determination.
Because communities like Sioux Falls don’t give up easily. They come together. They fight for each other. They refuse to stay silent.
Joslynn Mousseau needs that energy now more than ever.
She needs a city—and beyond that, a nation—to stand behind her and help bring her home.
🙏 Bring Jos Home
In times like these, awareness is power.
Sharing this story could mean reaching the right person at the right time. It could mean the difference between uncertainty and answers.
So please—don’t scroll past.
Share her name.
Share her story.
Keep your eyes open.
Because somewhere out there, a 14-year-old girl needs to be found.
And the question now is:
Will we come together fast enough to bring Joslynn home safely?
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