WEST PALM BEACH, Fla. -- Three defendants convicted in the gang-rape of a woman and her child at Dunbar Village in 2007 have been sentenced to life in prison. A melee erupted after the sentences for Tommy Lee Poindexter, 20, Nathan Walker, who turned 19 Monday, an More..d Jakaris Taylor, 17, were read. Deputies cleared the courtroom and had to restrain Taylor's younger brother. Jakaris Taylor's younger brother is restrained by deputies after his brother and two others were…