Wow. Unbelievable.

We had a similar case here a few years ago. A couple put their two little kids, I think they were like 6 and 4 years old, in a tent in their yard. Then they padlocked the door shut. They said they did it because they had fumigated the house for insects, and didn't want them in there. Turns out they had instead had a party. One of the children died from heat stroke inside the tent before they finally let them out the next afternoon.

There must be a special place in hell.