Jack Grimes, 79, and his friend, Dewayne Selby, 59, from Tulsa County Oklahoma were planning to go to a horse show in Fort Worth Texas on Friday but went missing on October 22, 2021. . Dewayne's mom, Glenda, 80, who goes by "Cookie," ended up going missing, too, on October 25, 2021. Glenda's car was found…