Odessa Fire investigators say they may never know what started the massive fire that destroyed Heap Equipment this past weekend.
Right now, the investigation into the big blaze is continuing, but we're told there are number of factors working against that investigation.
Fire officials say a lack of witnesses is hindering the investigation and the scene of the fire only provides just a few pieces to the puzzle.
Investigators tell NewsWest Nine they know where the fire started on the southside of the building, an area where there was a number of wooden pallets there along with a mattress.
Add to that, the location of the business, we're told a high number of transients move through the area, and are known to start small fires to keep warm.