 After the collapse of a portion of the roof of the I-90 Connector Tunnel on July 10, 2006 in which 38-year-old Milena Del Valle, of Jamaica Plain, was killed, Massachusetts Governor Mitt Romney called for Amorello's resignation.On July 27, 2006, Amorello agreed to resign, effective August 15.Romney pinned much of the blame for the collapse on the Massachusetts Turnpike Authority and promised to take legal action to oust Amorello after countless defects in the tunnels were discovered including hundreds of leaks and signs that structural bolts were loosening.