The city of Tinley Park, IL has a dedicated place on their website with information about the massacre. You can listen to a heavily edited version of the 9-1-1 call that isolates the voice of the perpetrator.
In 1974 Harvey Leach was young, handsome, successful and the Chairman of the Board for Joshua Doore furniture. His gruesome gangland style murder was overshadowed by the disappearance of Jimmy Hoffa one year later.
Tara and Stephen Grant were living what appeared to be a charmed life. Two lovely children, a house in the suburbs, an au pair to help with childcare, they were the envy of the neighbors. Until February of 2007 when Tara walked out on Stephen and vanished.