A Santa Rosa man pleaded guilty Wednesday to three felony counts in the theft of more than $100,000 from his wife's 97-year-old grandfather.
Paul Alexander Tart, 29, could face up to five years in prison. He has a long criminal history in his home state of Illinois involving theft, forgery, burglary and drugs.
Deputy Sonoma County District Attorney Robin Hammond said the terms of Tart's plea agreement include the maximum five-year term.
Family members, including some of his four wives and their families, have been among his victims, according to interviews with relatives.
He was sentenced to Illinois state prison in 2007 for forgery and theft involving his then-dying mother, family members and court records said.