we're ready to watch alex go for the gold here in rio, while micaela skinner is back home. she's sharing what her memories are all about. >> we are with some of the student journalists who are covering a major "world news" event. a shooting and then a barricade situation turned into a canine being injured. >>> we are one-on-one with larry fitzgerald next on 12 news at 10:00. >>> he is going out with a gold medal finish before swimmer michael phelps begins a new career at asu, tonight in rio, he picked up his 23rd and what he says is his final olympic gold medal. >> michael phelps just one the many stories from this olympics that shows how complete dedication can lead to the medal podium. we have 12 news team coverage with vanessa ruiz where alex is preparing for his moment on the pom he will horse. >> and monique just caught up with micaela skinner after her arrival back in the valley. >>> that historic moment in the pool from brian moore. >> michael phelps raced for gold one last time and was record with the help from his teammates. he stands alone with his 23rd gold medal