The pain of losing her brother is not easy to bear for Diane Eckert.

It's perhaps made a bit easier knowing first responders did their best to save him. She also knows her brother helped save the lives of three people through organ donation.

Eckert's brother, Cody Crosby, was killed in a car crash in Arvada in 2013 at the same time Officer Derek Berns was on his way home from work.

"I noticed there was a truck that was abandoned. It was not in the middle of the highway but there's a shoulder on the highway," Berns said. "As I passed that truck, I looked in my rearview mirror and I observed -- I believe it was -- a Taurus rear-ended that stationary truck."

Crosby died from injuries sustained in the crash. His family made the decision to donate his organs.

"My brother was such a giving person that there's no way that giving organs to another person that needs them isn't something that we wouldn't automatically say yes to," Eckert said.

Eckert is now a strong advocate of organ donation and took the opportunity Tuesday morning to thank the first responders who tried to save her brother's life. "For them to know that they actually saved so many other lives, I wanted them to know that what they do is amazing."

Berns said it's heartwarming to see the impact first responders have.