In 2008, Denise Amber Lee made a desperate call to police from the back of her abductor's car. She spent more than five minutes on the phone with a 911 operator, but police were not able to pinpoint her location.
She was sexually assaulted and killed.
Her husband has been pushing for changes ever since.
Tuesday, Nathan Lee returned home from a trip to Washington D.C. where he met with the Federal Communications Commission.
He was pushing for changes to cell phone carrier regulations.
"All they needed was just a general area, and they weren't able to get anything," Lee told Fox 13 News in his first interview since returning from his meeting with the FCC.
Lee said federal regulators must force cell phone companies to improve their GPS locating technology.
"It's just whether cell providers are going to be told they need to do it or not. And hopefully, they will be told they need to do it," he said.
Lee, who raises the two boys he had with Denise, said he still has trouble listening to the 911 call she made, during which she begs the operator to send someone.
"It was actually horrendous for me to have to listen to it. And I don't want to have to listen to it ever again," he said. "It was basically her last plea for help."
Lee has spent a lot of time working on ways to improve the 911 system following his wife's death. Five calls were made to police the day she was killed, including one from a witness who heard screaming from the car of her murderer, Michael King.
Florida lawmakers have since passed the Denise Amber Lee Act, which provides voluntary training to 911 operators.
"I know Denise is proud of the progress we've made. I know she'd be happy to see where we're at," Nathan said. "That gives me motivation to make sure that what I'm doing in telling her story is going to help hopefully somebody else from going through that."
Lee said neither the FCC nor cell phone representatives made promises, but he feels progress was made.
King was convicted of the murder, and is currently on death row.
FOX 13 / WTVT-TV
Didn't find what you were looking for?