His defense attorney , Scott Wippert , told CNN affiliate KABC NEW : ` ` I wonder why '' the plea deal was reached , the victim 's attorney says . Brandon McInerney , now 18 , agrees to pleading guilty for killing a junior high student . The sentence is 11 years for manslaughter , 10 for the firearm . The jury could n't decide earlier this year whether to convict him of murder or manslaughter .
NEW : ` ` I wonder why '' the plea deal was reached , the victim 's attorney says . Brandon McInerney , now 18 , agrees to pleading guilty for killing a junior high student . The sentence is 11 years for manslaughter , 10 for the firearm . The jury could n't decide earlier this year whether to convict him of murder or manslaughter .