` ` It was very close to being a catastrophe , '' ' says . A deputy underwent surgery after being shot in the leg . A SWAT team pulled up about 30 seconds into the firefight and engaged the attacker , according to Piper . Dennis Marx was armed with gas mask , assault rifle , and spike strips , they say . Sheriff : Carrying flexible weapons , he appeared intent on taking over courthouse .
` ` It was very close to being a catastrophe , '' ' says . A deputy underwent surgery after being shot in the leg . Dennis Marx was armed with gas mask , assault rifle , and spike strips , they say . Sheriff : Carrying flexible weapons , he appeared intent on taking over courthouse .