Investigators say books on revenge were found in the home of a man arrested on charges of possession and use of explosive devices.
Fifty-year-old Ronald Swerlein was arrested early Sunday when he tried to re-enter his home after being forced out with tear gas so police could search it.
They say they found pipe bombs, more than 400 dangerous chemicals, a stockpile of bullets and six guns.
They also found two books: "Don't Get Mad, Get Even," and "Your Revenge is in the Mail."
A judge yesterday ordered Swerlein held on 50-thousand-dollars' bond.
Police say the electrical engineer told them he was testing rocket fuel technology.