Strollo said an expert found no defects with the vehicle that contributed to the accident, and a defense expert came to the same conclusion.
Yale tightened its tailgating rules after the crash. It now bans kegs at university athletic events and other functions. Also, oversized vehicles, such as box trucks and large commercial vehicles, are barred from university lots at athletic events unless they are driven by a preapproved authorized vendor.
Material from the Associated Press was used in this story.