[andy_card]

Is the building mainly medical/dental?

Not exclusively, but largely.

[Sacajaweau]

What else is nearby, within a block or so...housing, buildings??

Sac

[cake_crumb]

"Not exclusively, but largely." [medical/dental]

ah HA!! If he worked for maintainance, I can think of a few things he might have had on his clothes...which might have flared or exploded when he tried climing into his vehicle. IF it was a chemical, whatever it was would have had to have been on his pant legs.

Hope the guy will be ok. Something about that "burned from the waist down part"....I'm not a man, but I automatically shudder in sympathy.