Very small. They didn't have guns back then so that pussies like this one could so easily kill others.
Back then, he would have used a stick or rock. There have always been bullies.
Back in the 1980's there were tribal cattle raids back and forth along the Kenya-Uganda border. Occasionally you would hear of raiders swinging the infants of their enemy tribe by their heels and bashing them against a rock.
Echos of Psalm 137:9 (read here for a better understanding of what this verse says and does NOT say: "http://www.letusreason.org/Biblexp7.htm" )
Evil and depravity have been with us since the Fall.
"But mark this: There will be terrible times in the last days. People will be lovers of themselves, lovers of money, boastful, proud, abusive, disobedient to their parents, ungrateful, unholy, without love, unforgiving, slanderous, without self-control, brutal, not lovers of the good, treacherous, rash, conceited, lovers of pleasure rather than lovers of God" 2 Timothy 3:1-4