He smiled at neighbors and stood in line at the shops. Maybe he once stood in your midst. He spent time in the Gosford boys home, and later prison, where he adopted the nickname Lenny the Loon. Streets would quieten in his wake, leaving an echo of the psychopath who once walked along them.

Sources:

Leonard John Fraser | Murderpedia, the encyclopedia of murderers Natasha Ryan's story — Her bizarre disappearance - TheNetline

Things A Killer Would Know: The True Story Of Leonard Fraser. Is He Australia’s Worst Serial Killer? By Paula Doneman

 ...