(Excerpt from Douglas O. Linder (2007) Univ of Missouri-KC http://law2.umkc.edu/faculty/projects/ftrials/guiteau/guiteauhomelite.html )
…Charles withdrew again to Illinois, where for a few years he eked out an existence as a debt collection attorney and managed to find a wife, Annie Bunn, a local librarian.
In the 1870s, Guiteau moved from place to place, from passion to passion. In 1872, while in New York collecting bills from a few deadbeats to pay his own, he began to take an active interest in politics. His shady collection practices--including pocketing his commission without paying his client--landed him a short stay in a New York City jail. In 1875, he followed--until it died--a far-fetched dream of buying a small Chicago newspaper and turning it into an influential one by reprinting news from the New York Tribune, transmitted telegraphically to Chicago each day. When Charles's grand scheme collapsed, his father wrote of his son: "To my mind he is a fit subject for a lunatic asylum."