The photo, published on Wednesday in The Greeley Tribune,
shows Mr Heit was responding to a friend by typing:
"Sounds good my man, seeya soon, ill tw"
before he crashed and died.

Witnesses told police that Mr Heit appeared to have
his head down when he began drifting into
the oncoming lane in the outskirts of Greeley,
where the University of Northern Colorado is located.