WATERLOO - Prosecutors and defense attorneys summed up their cases in the murder trial of Jeffrey Duane "J-Rich" Smith Thursday morning.

Smith, 21, is charged with first-degree murder in the July 9, 2006, death of Tonyeah Jackson.

The state said Jackson had struck Smith earlier that day following an argument between Smith and his girlfriend, who was Jackson's cousin.

Smith then got a 9mm handgun with a laser sight, found Jackson at Club Crystyles and began shooting, prosecutors said.

Four people at the bar who knew Smith identified him as the shooter.

"This isn't a complicated case. This is a simple case about J-Rich - Jeff Smith - murdering Tonyeah Jackson," said Assistant Attorney General Scott Brown.

"He didn't want to be no punk, and he took it out on Tonyeah with his 9mm gun," Brown said.

Defense attorney Robert Montgomery took aim at Bud Dunn, a witness from the club who was on a recorded phone call with a jail inmate when the shooting broke out and then called 911.

Dunn had identified Smith as the gunman to emergency dispatchers within minutes of the shooting and to jurors during the trial.

"Why would Bud make this up? Well, it seems perhaps Bud was in on it," Montgomery said.

"Bud's intentionally lying to pin this on Jeff Smith," he said.

He said Smith's claim that he saw Smith open fire influenced other witnesses, who in turn named Smith as the assailant.

He also criticized the police investigation of the case saying officers failed to look into gang members found at a Woodmayr Drive home with 9mm ammo and drugs minutes after the slaying.