HomeNews UPDATE: Grimes teen found safe, sound Wednesday By The Perry News - February 19, 2020 0 1977 FacebookTwitterPinterestWhatsApp Authorities found 15-year-old Jackson Tierney of Grimes Wednesday after he went missing Saturday afternoon. Authorities Wednesday afternoon found 15-year-old Jackson Tierney of Grimes, who had not been seen since Saturday afternoon. His condition was determined to be healthy and happy.