I was helping with a murder case, it was a little over five years since the crime, and the defendant asked me if I knew if there was a way to get cellphone loca

I was helping with a murder case, it was a little over five years since the crime, and the defendant asked me if I knew if there was a way to get cellphone location data as he said he had left the scene of the crime about an hour before the incident was held to happen, and returned about an hour afterwards. Nobody had thought to get this data before. I called Verizon but I was told they only hold location data for five years and had already erased it. For other reasons I believe the defendant to be innocent. He was put to trial three times for the crime; his first two guilty verdicts were overturned on appeal before he plead guilty to the minimum to get the process over with and have a near release date.