(CNN) -- A man stranded after his car plunged down a steep embankment in the Angeles National Forest survived for six days by eating leaves and drinking water from a creek, authorities said Friday. 

David J. Lavau, 67, of Lake Hughes, California, was found in a ravine a week after losing control of his car on a rural road and plunging 500 feet down an embankment into heavy brush, according to a report by the California Highway Patrol. 

Lavau, who is partially disabled, told authorities that he spent the first night in his car. 

"The next morning, he exited his vehicle and observed another vehicle adjacent to his own with a deceased male driver behind the wheel," the report said. "The deceased appeared to have been there for some time." 

Authorities say they have not identified the dead driver. 

The case began to unfold on September 23, when Lavau failed to return home. 

Lavau's family began searching for him when he failed to return home, driving the route and stopping at all the curves in the road from Castaic to his home in Lake Hughes. 

While Lavau's family searched for him, he "remained at the bottom of the hill surviving on leaves and water from a nearby creek," the report said. 

Lavau's son, Sean, found his father after hearing "faint yells for help on the roadway from the canyon below," according to the report. 

Sean Lavau hiked to the bottom of the canyon to find his father, the report said. 

The Los Angeles County Fire Department rescued Lavau and his son from the ravine. Lavau was taken to an area hospital where he was treated for moderate injuries, the report said. 
What's the name of the man who was stranded?
How did he become stranded?
Where?
For how long was he stranded?
What did he eat during that time?
What did Lavau find next to his car?
What was inside it?
Is Lavau partially disabled?
Where is Lavau from?
How many feet did the car fall down?
What's the name of the area where it fell?
What's the name of Lavau's son?
How did he find his dad?
What did he do after hearing his dad?
Who eventually rescued him and his son?
How severe were his injuries?
Was the dead driver identified?
David J. Lavau
David J. Lavau, 67, of Lake Hughes, California, was found in a ravine
lost control of his car
was found in a ravine a week after losing control of his car 
on a rural road
 losing control of his car on a rural road 
six days
A man stranded after his car plunged down a steep embankment in the Angeles National Forest survived for six days
leaves
survived for six days by eating leaves and drinking water from a creek,
another vehicle
 he exited his vehicle and observed another vehicle adjacent to his own
a deceased male
observed another vehicle adjacent to his own with a deceased male driver behind the wheel,"
yes
Lavau, who is partially disabled
Lake Hughes, California
David J. Lavau, 67, of Lake Hughes, California
500 feet
losing control of his car on a rural road and plunging 500 feet down an embankment 
an embankment
 losing control of his car on a rural road and plunging 500 feet down an embankment into heavy brush
Sean
Lavau's son, Sean
He heard him yell
Sean, found his father after hearing "faint yells for help on the roadway from the canyon below," 
hiked to the bottom of the canyon
Sean Lavau hiked to the bottom of the canyon to find his father,
The Los Angeles County Fire Department
The Los Angeles County Fire Department rescued Lavau and his son from the ravine.
moderate
Lavau was taken to an area hospital where he was treated for moderate injuries
no
Authorities say they have not identified the dead driver. 
