Can butterflies die from fear?

I witnessed a strange butterfly behaviour the other day. Strange to me anyway. I was in the store I work in and a butterfly was trapped inside while I was opening the doors and windows. Trying to avoid getting it hit or crushed, I used my hands to make some air to blow it away from a tight spot. I did not touch it and yet the butterfly instead of flapping its wings it started trembling as if it was scared! after less than a minute it was on the floor still shaking a bit but getting stiller. After about two minutes it was totally still.
The whole experience made me thought that it died out of fear.
quite sad really