Brian James Dugan (born September 23, 1956) is an American rapist and serial killer active between 1983 and 1985 in Chicago's western suburbs. He was known for having informally confessed in 1985 to the 1983 abduction, rape and murder of 10-year-old Jeanine Nicarico of Naperville, Illinois, which was a highly publicized case. He was already in custody for two other rape/murders, one of an adult woman in 1984 and the other a female child in 1985. He was sentenced to life after pleading guilty to the latter two crimes.