Controversial Sheriff Joe Arpaio Targeted

Investigators try to figure out who may have tried to kill the sheriff.
2:13 | 04/13/13

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Transcript for Controversial Sheriff Joe Arpaio Targeted
Back at home he is safe to say one of the most colorful figures. Joe arpaio, sometimes called america's toughest sheriff. Former reality star and once forced inmates to wear pink underwear and investigators are trying to figure out who may have tried to kill the sheriff. Abc's john schriffen on the story. He is one of the most controversial law enforcement figures in the country known for his firm stance on illegal immigration and became the latest victim in a scary trend of public officials being targeted. I am not going to be intimidated by anyone. Reporter: He's tough. He's brash and he doesn't back down from a fight. I'm going to continue being the sheriff for many more years and I will continue to do what I've been doing. Reporter: That's arizona's controversial sheriff, joe arpaio, this morning, still standing tall after his chief deputy says the sheriff could have been killed by a mail bomb. It would have caused a major explosion and caused serious physical injury, burns and maybe death. Reporter: A postal worker intercepted a package addressed to arpaio alerted by the ex-ive amount of postage. It started leaking powder and x-rays showed inside a container of gun powder attached to wires and batteries. I've had many, many threats from the cartels of mexico and so on, but the timing seemed very suspicious. Reporter: Suspicious, he says because a fear that law enforcement officials across the country may be being targeted. Arpaio says he's not sure if there's a connection. While recovering from a broken she'll be more careful with care packages. Usually cookies and flowers that come to my desk. I think I'd bet be be a little more careful. I don't want a bomb to set off a cookie. The fbi is on the case and has a few leads as to who could be responsible. His family, he admits his wife of 57 years, his kids and grandchildren are pretty concerned but he says they support him and know he will not back down. Instead, dan and bianna, he'll fight even harder. Remains defiant, thank you, john. Now to the latest on the

This transcript has been automatically generated and may not be 100% accurate.

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