Robert Bruce Spahalski and Stephen Spahalski were identical twins. Same hair, same eyes, same thirst for blood. Stephen was the first brother to kill - by viciously bashing in storeowner Ronald Ripley's head with a hammer when he was 17 years old!

Unlike Stephen, Robert didn't stop with just one victim. With the cord of an iron, Robert strangled prostitute Morraine Armstrong while having sex. With his bare hands, he choked his girlfriend, Adrian Berger. He brutally bludgeoned to death businessman Charles Grande. Even his friend Vivian Irizarry didn't escape his lurid killing spree. Robert ultimately confessed to the four murders in vivid detail. But police suspected there were many more. The twins' twisted story became even more bizarre as the true nature of their sick psyches came to light.

Robert Spahalski reveals for the first time the horrific details of his life and crimes in the book KILLER TWINS, a disturbing look at the inner workings of a homicidal mind. KILLER TWINS author, Michael Benson joins me today on MMF