It was reported last December that the two used a total of four 40-liter nitrogen gas tanks along with tranquilizers in order to create a 'suicide kits' selling them on the internet for 1 million KRW ($867 USD) per set.
They told potential buyers, "After hooking up the nitrogen gas to the tent one has to take a tranquilizer and just go to sleep," explaining the instructions for a painless death.
Not only that, it was revealed last December Mr. Song even attempted to sexually assault a woman in her 20s after introducing her to the product, saying "I am a grim reaper, I hold the power of death."
After further investigation with the victims' acquaintances, police personnel reported there were no actual deaths involved.
It was also revealed that the two culprits stated to the victims that they too were preparing their suicide deaths when in actuality they were preparing to use the money from the sales to establish an illegal gambling site.