Blame game escalates in pedestrian bridge collapse that killed six
Aftermath of the collapsed bridge at FIU (Screenshot)

MIAMI — Cracking in the concrete, tension cables, stress tests — no conclusion has been made whether any of them caused the pedestrian bridge at Florida International University to collapse, killing six motorists under an avalanche of concrete and metal. But as crews continued working Saturday to recover the last victims from the rubble, finger-pointing over…