Deputies say law enforcement executed multiple search warrants Tuesday as part of the investigation. They say more suspects could be arrested.

Garon Killian was previously charged with seven counts each of attempted first-degree murder and assault with a deadly weapon with intent to kill in April, according to a previous Hickory Daily Record article. He posted a $50,000 bond for his release in April under the conditions that he does not possess or touch a firearm.

Authorities in North Carolina announced a flurry of arrests and charges following a weekend mass shooting that left one person dead and 11 others injured.