The story of a 77-year-old man who went missing and was later found dead in a remote part of Maine has prompted the Legislature to pass a “Silver Alert” law, which is aimed at preventing similar tragedies in the future. Gov. John Baldacci on Thursday held a ceremonial bill signing in his office to mark the law’s enactment. Among those attending was Claire Young, widow of William Young, whose body was found in the woods 150 miles north of his Auburn home days after he left to search for a woman who had been reported missing. William Young suffered from dementia. The new law, modeled after Amber Alert, speeds up the search and adopts a uniform statewide public notification policy utilizing radio and TV when a senior citizen gets lost. Baldacci said the new law is a testament to Claire’s love for her husband.