Two friends in Atlanta prove to be great detectives, even though they are both legally blind.
Paul Crawley takes a look at how they tracked down a missing iPhone.
"It's a palm top computer that happens to have a radio in it, so it's really my computer."
Because he's blind, Vincent Martin's iPhone is more than just a phone.
Specially equipped to listen and talk to him, it's his lifeline to the world.
Last Friday, he lost that lifeline after dropping off his seeing-eye dog Karson, for some medical tests.
The former Paralympics athlete took a checker cab back to the Georgia Tech campus, where he's a grad student. Then he panicked.
"Oh, my phone's in the cab."
Martin called on his friend, Synge Tyson, who's almost blind herself. She managed to find a signal from Vincent’s iPhone on her iPad.
"Vincent's iPhone, located one minute ago. Vincent's iPhone."
"It would change locations and I said, 'your phone has gotta still be in this taxi because it's a taxi pattern'."
Synge and Vincent said they contacted the cab company and Atlanta police, but got no help.
So two days later they did their own detective work following the signal.
"Sunday afternoon Vincent's brother drove him around looking for his missing cell phone while friend Synge tracked it on her iPad. It led them straight to the cabbie's home in Clayton County."
"He was just flabbergasted, cause he was like, he didn't even know it was a phone; I really don't think he had any idea what was going on."
"An everyday person like myself can help my friend, who's blind, find his iPhone; I thought it was just wonderful."
Now Vincent Martin has his lifeline again, thanks to his brother, his friend Synge, and their persistence. And he has some advice if you have one.
"Chain your iPhone to you; don't take it out of the holster for any reason."