Premise: The Interstate 35W Mississippi River eight-lane bridge in Minneapolis, Minnesota has collapsed on both sides of the highway over the Mississippi River during rush hour. Previous reports indicated at least nine people had died, but Minneapolis police revised this to four during a 7:30 a.m. (local time) press conference.  Tim Dolan, the Minneapolis Police Chief later stated that "several [adding to the four] people are confirmed dead at the scene," but would not elaborate on how many. At least 79 have been injured and at least 8 are still missing, still believed to be in the rubble.
Hypothesis: An eight lane bridge is very wide