Wireless Companies estimate there are 271 million cell phone users in this country.

Drive down any road, at any time, and you are almost guaranteed to pass a driver talking on their cell phone.

In Michigan, there's no law against it and for a lot of drivers it has become part of their daily routine.

One couple from Spring Lake Township is trying to change that.

David and Judy Teater made it their mission after their son was killed seven years ago in Grand Rapids.

Back in 2004, Judy was driving her 12-year-old son Joe to a tutoring session on a Monday afternoon. They were headed through the East Beltline and Knapp.

"It was less than a mile from our house, it was an intersection we went through all the time," remembers Judy Teater.

A 21-year old nanny driving a hummer blew through a red light and hit their car, killing Joe.

The driver was on her cell phone at the time.

"Joe was in the passenger seat and he never recovered, you never get over it," said Teater.

The 21-year-old nanny pleaded guilty to negligent homicide and served five years probation and was ordered to pay restitution.

"This devastated our live and it devastated her life, we forgive her, but we feel if she would have known the dangers back then, Joe would still be alive.

"We had a comfortable wonderful life then and when we lost Joe it changed everything," said David Teater.

After we lost Joe, our phone started ringing people and were calling saying hey this is happening to me," said David Teater.

Their pain hasn't gone away, but they've turned their personal tragedy into a life mission.

The Teaters started doing research on distracted driving.

"I was a heavy cell phone user, I had no idea. We saw the details of this crash in the police report and we couldn't believe someone could make such a big mistake," said David Teater.

One year ago,  they started FocusDriven, a grassroots advocacy group modeled after Mothers Against Drunk Driving or MADD

"Our goal is to reduce injuries and fatalities as a result of distracted driving," said Judy Teater.