en_tn_condensed/act/20/09.md

In the window

This was an opening in the wall with a ledge that was wide enough on which a person could sit.

Eutychus

This is the name of a man.

who fell into a deep sleep

"who slept soundly" or "who became more and more tired until finally he was sleeping soundly"

third story and was picked up dead

"third story; and when they went to pick him up, they found that he was dead"

third story

This means two floors above the ground floor. If your culture does not count the ground floor, you may state this as the "second story."