Investigators scoured streets near the scene of the shooting for clues and several people were brought in for questioning, but there were no arrests.
Protests in Ferguson, Missouri, have begun to abate after a white police officer shot dead an unarmed black teenager on August 9.
Mohammed Bielshak (12) is just one of the thousands of casualties of the fighting in and around Misrata since the start of the uprising.
When the war in Libya started, many young men were so interested in games that older residents never thought they would turn into fighters.
Rebel fighters in western Libya faced sustained artillery and rocket bombardment by forces loyal to Muammar Gaddafi for the fifth day on Saturday.
Libya’s Muammar Gaddafi could fall within two to three months, the International Criminal Court’s prosecutor said on Tuesday.
Nato said on Saturday its missiles had hit a site in Libya used by Muammar Gaddafi’s forces to stockpile military supplies and vehicle.
Nato officials have admitted a house was destroyed in an air strike on Tripoli in which Libyan officials said nine civilians were killed.
Nato planes resumed raids on Tripoli after Muammar Gaddafi’s son said the Libya leader was willing to hold elections — an offer rejected by rebels.
Nato warplanes attacked Tripoli on Tuesday night after Libyan rebels pushed back forces loyal to leader Muammar Gaddafi on three fronts.