death of mali uromastyxl

Question
I am devistated as our pet for 5 years just died suddenly and I feel responsible.  I placed him outside for some natural sunlight with his cave for shade but found him lying on the sand dead after 40 minutes of exposure.  Could the sun/heat have killed him?  He was eating and appeared fine.

Answer
Hello Michelle,

Oh man that is rough!  I am sorry to hear that.  
What did you have him in?  A glass tank?  The radiant heat is a possibility as it can cause overheating.
The sun itself is not responsible for his death though.
Though, could he have accidentally eaten a toxic bug or something?

Tracie