While playing through the fourth quest in a recent game of JiTD one of our characters was "blessed enough" to get the divine retribution skill. Because of the low cost of death for that character (2 cp) the heroes (myself included) decided to wait for a particularly large mass of baddies to gather and have that hero unequip armor and fire ruthlessly into his back, killing any and all unnamed monsters in the area. We were able to pull this off in the final room and eradicate all but the final named boss. After the game was over we all wondered if what we had done was wrong... well we knew it was wrong, hehe but really we wondered if this was an allowed action. After searching through the rules section it's quoted as saying :
"The attacking player declares which space his figure is attacking. If the attacking figure is a hero, the player must also state which equipped weapon the hero is using."
Which suggest to me we can attack any "space" including the one our poor nuke was standing. Any information on this would be much appreciated.