reporter: the north carolina state bureau of identification has identified the trooper involved as jermaine sanders. he is currently on paid administrative leave. >> ninan: do we know if there is police protocol in dealing >> law enforcement officials are required to follow a certain protocol when dealing with people who are deaf or hearing impaired. however, in this incident, it's not clear whether the officer involved knew that to be the case. >> ninan: okay, marlie hall, thank you, marlie. in alaska, two wilderness guides had to be airlifted to a hospital in seattle after they were mauled by a bear. they were leading a group of cruise ship passengers on a hike when they got between a bear and her cub. the summer olympicses are in the home stretch this weekend, and once again, we've learned that no human can reach the finish line faster than a guy named bolt. jamie yuccas is covering the games for us in rio. >> here's usain bolt. three times three, the triple-triple. >> reporter: it was a lightning-fast farewell to the olympics for usain bolt, who made history again last night winning his ninth g