A Portland man has been sentenced to 18 years in prison for stabbing a bouncer at what was supposed to be an alcohol and drug free party last year. Abdi Awad received a 25-year sentence with seven years suspended on Wednesday in Cumberland County Unified Criminal Court on a charge of elevated aggravated assault. Authorities say Awad stabbed Donald Brown twice in the back at the party in March 2011. Alcohol and drugs were prohibited from the party, which drew a largely Somali crowd. A melee erupted after a bouncer saw alcohol passed among a group that included Awad. Awad stabbed Brown after another security person tried to prevent Awad from intervening. The Portland Press Herald, reports that Awad sobbed and apologized in court.