specifies a weight limit of 287 pounds, and says of large guests, check that they fit within the contours of the seat and the bracket fits properly. sampson, an eighth grade football standout from missouri reportedly weighed more than 300 pounds. ken martin is a ride safety expert. what do you think is going to change? i think we re going to see more emphasis on operator training, and we have have those guys properly trained. reporter: slingshot group, which owns and operates the ride, has vowed to cooperate with authorities icon park, where the ride is located, has vowed to do the same. but it s also demanding that another ride there, owned by slingshot, be shut down until investigators can determine whether both are safe. norah. o donnell: manuel bojorquez, thank you. and still ahead on tonight s cbs evening news, jada pinkett smith s first public comments