Police in Coeur d’Alene and Post Falls are investigating three robberies and an attempted robbery this week that may be the work of the same masked man. All four crimes happened within a 48-hour period and include some similar suspect descriptions, said Sgt. Christie Wood of the Coeur d’Alene Police Department. “We think they’re related,” Wood said. “We don’t have robberies like this on a routine basis.” The first robbery happened Sunday at 9 p.m. at Frontier Grocery, 2707 W. Seltice Way, Post Falls. A man entered the store, demanded money from a cashier and quickly left with an undisclosed amount of money, headed north. There was no mention of a weapon/Scott Maben, SR. More here.