The Cowboys tentlike practice facility collapsed on May 2, paralyzing scouting assistant Rich Behm and injuring 11 others.
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In one message, Irving City Manager Tommy Gonzalez indicated the facility "probably never was structurally sound enough" to sustain itself against straight-line winds.
Another message from Gonzalez referenced how the "big D org pushes things thru."
Neither Cowboys owner Jerry Jones nor a team spokesman would comment to the newspaper.