J.K. Rowling sent a heartfelt tweet early Monday morning regarding a victim of the Orlando mass shooting.

The post was about Luis Vielma, 22, who happened to be an employee at The Wizarding World of Harry Potter at the Orlando, Florida, Universal Studios theme park. Vielma was one of 50 people who tragically lost their lives at Pulse nightclub on June 12.

Luis Vielma worked on the Harry Potter ride at Universal. He was 22 years old. I can't stop crying. #Orlando pic.twitter.com/Nz2ZCWxNsS — J.K. Rowling (@jk_rowling) June 13, 2016

Rowling, known for writing the Harry Potter book series, is an avid Twitter user. After expressing her own grief on the platform, she took the time to respond and empathize with others who had also known Vielma.

@jk_rowling Thank You for this. Luis Vielma loved every bit of working at the harry potter ride. He brought smiles to every one he met. — Justin Muniz (@JMuniz822) June 13, 2016

@JMuniz822 I'm so, so sorry. My heart goes out to you, all his friends and his poor family. — J.K. Rowling (@jk_rowling) June 13, 2016

Co-workers of Vielma, past and present, as well as those who had met him, also rallied to respond to Rowling's show of appreciation.

@jk_rowling @JMuniz822 had the pleasure of meeting him last week on my holidays, he was SO nice to my son, such a lovely guy 💙 — Sarah Moore (@sarahBijouClub) June 13, 2016

@megadis13 @jk_rowling I remember him from my last trip. So lovely.I bet there are many of us all over the world crying for him today. — Kirsty (@KDoubleEwes) June 13, 2016

@jk_rowling Trust me, you would have loved him. He was the guy in the breakroom you liked four seconds after walking in. — Melissa A. Gibbo (@melissagibbo) June 13, 2016

One of his co-workers tweeted at Rowling that another colleague of theirs who worked on the ride, Tony, is still in critical condition following the horrific shooting.

@jk_rowling I worked with Luis he was a gryffindor who would make you proud. We have a slytherin who's still in the icu. His name is Tony. — Victoria Bidorini (@abnormalvb) June 13, 2016

Rowling responded a mere 13 minutes later with her condolences.

I'm praying Tony pulls through. My thoughts are with all of you #LoveIsLove #Orlando https://t.co/JLSBMWRrfJ — J.K. Rowling (@jk_rowling) June 13, 2016

Vielma worked on The Forbidden Journey ride in the theme park. The ride was closed on Sunday out of respect to Vielma and his family, as reported by Newsweek.

“We are deeply saddened over the loss of our team member. We are working to support his friends and colleagues here at Universal Orlando. Our thoughts and prayers are with Luis, his family, and all the victims of this tragedy," said a spokesperson for the theme park.

Here's to you, Luis, Tony, and all the other victims.