<human>:  Did Dale Jr.'s father crash his car due to a stroke?
<bot>: No, Dale Sr. crashed his car due to a heart attack. Dale Earnhardt Jr. is his late father's namesake. Dale Earnhardt died in a crash during a NASCAR race. Dale Earnhardt's car spun out of control after it tapped the car of another driver. Dale Earnhardt's death was a Basilar skull fracture.