ELK GROVE, Calif. — An 82-year-old Sacramento-area man who went missing, prompting the state’s first-ever Silver Alert, has been found. Authorities tell the Sacramento Bee (http://bit.ly/X0vpQ3) that Robert Grappi was discovered Wednesday morning after police in Nevada County conducted a vehicle stop. Grappi left his Elk Grove home Monday and was believed to have been driving to his son’s house in Nevada County. Elk Grove police say he has shown signs of dementia. A Silver Alert went out for him the next morning after he was reported missing. It was the state’s first Silver Alert — a program that went …