It was a crime scene that proved something evil had happened in an apartment in El Reno, Oklahoma.
Summer Rust, 25, had been brutally strangled and her four young children were dead.
Their small, lifeless bodies had been heartlessly stacked in the bath of their family home.
Devoted mum, Summer, had unwittingly triggered the slayings when she told her boyfriend Joshua Durcho their relationship was over, just the day before.
Unknown to Joshua, 29, as he stared into the eyes of his victims,would eventually save his life.
