The Secret Service is investigating an image posted online showing several young Arizona men in the desert holding a bullet-ridden T-shirt with President Obama's face .
The image was initially posted Jan. 20 on the Facebook page of Sgt. Pat Shearer of the Peoria (Ariz.) Police Department. Sgt. Shearer is a decorated officer who was honored in 2007 for helping to save a driver trapped in a burning vehicle, reports the New York Times.