The recorded flight data ends after 5:35 with plenty of battery and the drone well above terrain.
It was 756 ft out from the launch point and flying south at 35 mph.
Failsafe action was set to RTH.
When the data ends the drone is in stable flight, with full signal and no indication of any collision.
With no evidence of anything abnormal, a loss of power is the most likely cause of the incident.
The last location data was at 36.82769 -121.20375.
Given the drone's speed and direction at the time, a search should be from that point heading south to an estimated impact point approximately 350 feet further south.