Its really a sad incident.
If the boy was a criminal then he should be arrested, not killed. Second if the rangers caught him red handed and wanted to punish him, they could simply cut one of his hand off (Acc to Islam), but Why killing ?? Involved Rangers must be brought to justice, because they have committed a crime.
Now for Karachiite
I live in Karachi too. I know what your party and other political parties use to do in Karachi. you play COUNTER STRIKE in public areas using public residences as shield. All political parties have their sector offices in public areas, who mainly deals in small handy weapons for youth. In case of clash b/w parties, majority of common men die in cross firings. what you people do in Karachi to protect your VOTE BANK, every one is aware of it. Political parties hire such youth, wash their brains and use them for criminal activities. You better SHUT UP or I'll explain briefly what MQM, ANP, JAMIAT & PPP etc etc ..do in Karachi and how daily people die here by what media use to state it TARGET KILLING.