Former state Sen. Joseph “Jim” Marzilli pleaded guilty today to accosting four women while on state business in Lowell in a bizarre sex-crazed spree that destroyed his career. He was sentenced to three months in jail to be served at the Billerica House of Correction. One of the Arlington Democrat’s victims was handicapped, police have said. Lowell Superior Court Judge Paul Chernoff gave him prison time over the objections of his lawyer who was seeking probation. In addition to four counts of accosting and annoying a person of the opposite sex, Marzilli also pleaded guilty to resisting arrest and disorderly...