MARIETTA. -- Police arrested three suspected members of rival gangs who have teamed up and wreaked havoc on suburban counties. Now Police are working to shut down the gang as a whole.

This investigation into suburban gangs broke open last month when at least two men were involved in a gang related shooting. Now several people are in jail and more arrests are expected.

According to police, 23-year-old Franklin Ellis Summerour, of Cobb County, was arrested on Friday.

Authorities said Summerour shot a man in the rear buttock with a 9mm handgun during an argument on April 4. A juvenile was present at the shooting, police said.

Summerour is facing six charges: aggravated assault with a weapon, cruelty to child, possession of a firearm during commission of a crime, felon in possession of a firearm, reckless conduct, and violation of the criminal street gang act.

At 2:45 p.m. Thursday, the Marietta Police Department executed a search warrant at Summerour's residence at 30 Kirkpatrick Road. The warrant was part of an active investigation against gang activity in the area.

Summerour, a self-proclaimed member of the Bloods, has connections to a local gang called D.M.B. (Dem Marietta Boys).

"DMB is a hybrid gang. It's unique that it's made up of local neighborhood people that grew up together that wouldn't traditionally form a gang together," Officer Chuck McPhilamy said.

In fact, two more gang members were brought into custody as well. Karez Freeman was charged with forgery and violation of criminal street gang act and Anthony Breeone Freeman, a self-proclaimed Crip gang member, was charged with the forgery and violation of criminal street gang act.

A warrant obtained by 11Alive news said DMB members are known for committing murders, assaults and other heinous criminal acts in Cobb County and the surrounding metro-area. Law enforcement authorities said DMB has been operating for a few years but have taken a more violent turn recently.

Cobb County authorities said there have been an uptick in gang problems. Earlier in the year, more than a dozen Cobb County gang members were sent to prison for distrubting heroin. Leaders said it's a problem they're working to get under control.

PHOTOS: 3 suspected gang members arrested in Marietta