Falmouth Police say they have located a vehicle believed to have been involved in the crash along Grand Avenue in Falmouth Heights that killed 81-year-old Michael Leis of Framingham.
Leis was walking with a group of people on a sidewalk when the car reportedly went off the road and struck him at a high rate of speed.
Police also say the investigation has revealed a person of interest that may have been driving the car at the time of the crash.
That person’s identity is being withheld at this time as well as the make and model of the suspect car.