Help hacking a Steam Account

Hey guys i was hoping you could help me hack this guys steam account he scammed me into buying an item for tf2 which was not worth as much as it should. this really pissed me off so i want revenge. please help would really be appreciated. he also denies that he scammed me which pisses me off the most

his steam id STEAM_0:1:41762178

Thanks guys

lawl try this it worked for me http://www.mpgh.net/forum/57-general...ml#post6417931