The Las Vegas tragedy is the deadliest shooting in American history.
With over 500 people wounded, the need for blood is still critical. And if you're wondering how you can help there's a way you can do that -- by donating through One Blood.
A blood drive to help Las Vegas shooting victims collected donations through One Blood's Big Red Bus as it was parked at the Boca Raton Outpatient Surgical and Laser Center.
"I think it's insane, disgusting and heartbreaking. I mean, it's so many innocent people," said Morgan Thompson, who donated blood on Wednesday.
Local registered nurse Frannie Nachlas teamed up with One Blood to organize the blood drive at her workplace.
"We wanted to help as much as we could," she said. "The need is there. It's just great as a community to just put every difference aside and have one goal. And that one goal is to help people and help people you don't know, which is really a selfless act. And I really love that people are coming out and doing that."
Organizers say they got such a big response from our first story on Tuesday, that One Blood collected 10 units of blood in just two hours. That's usually the goal for an entire day on one bus. A second bus was brought out to accommodate for donations.
More than 40 units of blood was collected from at least 100 people throughout the day.
"I'm so happy and grateful that people are coming out to do something for someone other than themselves," said Nachlas.
Nachlas and her husband -- who also works at the surgical center -- have witnessed mass violence first hand as a runners during the Boston Marathon bombing in 2013.
"I will never forget seeing ambulances, one after the other after the other. And the aftermath and watching the news being in Boston," said Nachlas.
Thompson and Nachlas share that in common: Thompson worked near the marathon finish line in Boston. She came out on Wednesday to show her support.
"I donated up there so I know how important it is and how much blood is needed for those victims out there," said Thompson. "There's just so many, so many people that do need it. It's just outrageous the number of people that are affected."
With so many people hurt, hospitals and blood banks in Las Vegas are overwhelmed. Hundreds of victims are still in the hospital, with more than 40 critical.
"They still need blood. They may not need it today or tomorrow. But this blood won't get there today or tomorrow. This blood get there in a few days -- when they need it," said Nachlas.
One Blood will be holding another blood drive from 11 a.m. to 5 p.m. on Thursday at the Boca Raton Innovation Campus on 5000 T-Rex Avenue in Boca. A Big Red Bus will be parked there.
One Blood is looking for all blood types but are especially in need of O- type blood.
