IOWA CITY (AP) — Investigators on Wednesday asked for the public’s help in solving the killing of a retired grocery store owner who was found dead in his burglarized northeastern Iowa home five months ago.

The Iowa Division of Criminal Investigation said investigators want to speak with anyone who may know something about the killing of Carl “Kenny” Gallmeyer, 70. Gallmeyer had owned Poppe’s Grocery and Lunch in Clarksville from 1973 to 2005, when he sold the business, married for a second time and moved about 20 miles away to Nashua.

Investigators with the Chickasaw County Sheriff’s Office found Gallmeyer’s body at his home in Nashua on Oct. 4 after receiving a request to check on his welfare. Friends had not heard from Gallmeyer for at least several days.