Wausau police say an anonymous tip led officers from several law enforcement agencies to the man they had been looking for Sunday. Matthew Robinson is considered a person of interest in a shooting incident which happened Saturday morning. Police say it was a domestic disturbance. Robinson faces potential charges of recklessly endangering safety, impeding breathing by strangulation, battery, disorderly conduct and domestic enhancement. Robinson tried to run away when officers approached him, but a police dog tracked him down.