Complex sentence: When Helen relayed the information given her to the Pittsfield police, they are able to find his body on September 30 in the Housatonic River, 1000 feet south of the Pomeroy Avenue bridge.
Split into simpler sentences: When Helen relayed the information given her to the Pittsfield police, they are able to find his body. Aurelio was found on September 30 in the Housatonic River, 1000 feet south of the Pomeroy Avenue bridge.