Los Angeles (AFP) – A US writer who penned a tract entitled “How to Murder Your Husband” was sentenced to life in prison on Monday for fatally shooting her spouse. Nancy Crampton Brophy, 71, will be eligible to apply for parole in 25 years, a judge in the northwestern state of Oregon told her. Crampton Brophy’s month-long murder trial heard how the author had used a gun barrel bought on eBay to kill her husband in the hope of collecting hundreds of thousands of dollars in life insurance. The weapon, which she claimed had been acquired as research for a new novel, has never been found. Chef Dan…