Following a radio signal emitted by a bracelet, Philadelphia police this week were able to locate a 77-year-old man with Alzheimer's disease who had been missing for a day.
The man was last seen leaving a residence in the 200 block of North 52d Street about noon Sunday, police said. His family reported him missing about 3 p.m. Monday.
The man was enrolled in the SafetyNet program, run by LoJack, the company that helps locate stolen cars.
SafetyNet supplied police with the man's bracelet frequency. Police first sent patrol vehicles to locate the signal but were unsuccessful.