Tire marks dug into the dirt and small skid marks on the concrete point to the spot where Tammy McCall slipped into an eight-foot deep canal.
"It appears the vehicle drove in. There was no evidence of a collision. Mis-negotiated the levy and drove straight into the canal," Lindsay Police Chief Rich Wilkinson said.
Police believe darkness and disorientation may have led McCall to a dead end not far from her home.
Family members said McCall had recently been diagnosed with the early stages of dementia. And the accident happened shortly after she dropped off her son at work early on the morning of January 18.
Dive teams searched the canal for days but only found McCall's car. McCall proved harder to find. But the discovery Friday put to rest any notion of foul play.
"They conducted a medical examination and were able to conclude that she passed as a result of drowning," Wilkinson said.
McCall's family expressed gratitude for all the help they got during the search, but they also asked for privacy as they move forward with funeral plans.