(Beaverton, OR)  --  Beaverton police are keeping a watch for a runaway teen from Arizona.  Authorities say 13-year-old Marie Garnett was visiting a local friend when she texted her father in Arizona to say she'd run away.  Police think Garnett may have boarded a Greyhound bus to southern Oregon.  She's described as white, four-foot-eleven and 100-pounds with brown hair and brown eyes.