What Happened to the Boy?

An intense fire destroys the palatial home of a prominent attorney and his wife. After their bodies are removed from the burning house Sam Nagy is pronounced dead immediately; his wife Alyssa succumbs on the way to the hospital. The causes of death are due to bullet wounds-not the fire. But what happened to their boy? Thin Lizzy a dowdy homeless person who secretly resides nightly at the public library knows about the boy but she's not telling.