Traffic Accident - Older Farang Gent

Yesterday around 10am i was driving up Huay Kaew Road (towards Nimmenheimen). Just at the school (do not recall the name) near the pedestrian crossing I saw a red songtaew and gathering of people (including a couple of farang), around a white haired older gentlemen who was lying motionless on the road. One farang was bent over him whilst the others gathered were on phones. I slowed down to see how the situation was, and things seemed to be happening (in control) so drove on. I do not know if the man possibly had a stroke, or if he was hit by a vehicle. I am concerned to know if anyone knows if this man is ok. No names of course, unless this man is on thaivisa and replies himself, or gives permission.

Thank you.