It happened Saturday about 9:15 p.m. in Rehoboth beach. Troopers say a man forced his way into the home, sprayed the victim, took his wallet and fled.
Police have obtained arrest warrants for 31-year-old William Maichle Jr. of Lewes charging him with robbery and other offenses. Troopers say anyone who knows of Maichle's whereabouts should call 911.