Why did Josh Brent and Jerry Brown not learn from previous tragedies

Josh Brent, a former tackle for the Dallas Cowboys, faces up to 20 years for intoxication manslaughter.

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The nightclub is less than five miles from Josh Brent's apartment. The white Mercedes travels northwest on the service road of the Carpenter Freeway. Straight ahead is a railroad bridge, the same bridge Debbie Weir can see from her corner office. The Mercedes is a mile from the 511 Building, on the road that leads to its entrance. For 32 years the occupants of the seventh floor have tried to prevent what happens next. All it takes is a tire against the curb. The chain reaction begins. Jerry Brown's fate is in Josh Brent's hands. They are almost home.