The St. Lucie County Sheriff's Office has arrested a man for the deadly shooting that took place on Martin Luther King Jr. Day at Ilous Ellis Park.Related: Organizers of Martin Luther King Jr. event in Fort Pierce where mass shooting that place terminatedAccording to Sheriff Ken Mascara, Kemmye Riccardo Parson, 28, was arrested Friday, March 17, in Tampa, Florida. "He was located and arrested by U.S. Marshals. His charges include attempted first-degree murder, murder with a firearm, second-degree murder and possession of a firearm or ammunition by a convicted felon," Mascara said in a news conference Monday afternoon. Nikkitia Bryant, 29, was killed in the mass shooting while she was attending the event in Fort Pierce with her now 10-year-old daughter. Family members told WPBF 25 News that she was standing at a food truck when she was shot in the abdomen — and her child saw it all. St. Lucie County deputies said seven other adults were shot, and four people were injured, including a child. Officials believe the shooting was between at least two people and that some are documented gang members.The sheriff, however, said on Monday that he doesn't believe the motive of the shooting was gang-related.As for Parson, he is currently being held without bond at the Hillsborough County Jail, awaiting extradition to St. Lucie County. Watch: Fort Pierce teens speak out after mass shooting "There’s still a $10,000 reward out there for any other information that our community feels important," the sheriff said. "We want to know who the other people were in the park that shot that day, we want to know if there’s video or photos out there that our community still has that they haven’t shared. We need it, we want it."Since the tragedy, St. Lucie County commissioners have been working on acquiring security cameras in five parks. The sheriff said they are in the bidding process with a couple of companies. Additionally, the sheriff said the two event promoters of the MLK celebration in Fort Pierce have been banned. "They are banned from leasing any county facility," Mascara said. "They failed to notify the county that their security detail was canceled. They failed to notify us."Officials also said the promoters indicated in their application that alcohol would not be served. However, the sheriff said they discovered there was a beer truck at the event. Investigators said that with the arrest, they want to remind the community that the most important part is remembering Bryant and bringing justice for her family. FULL AUDIO: Officials release Fort Pierce mass shooting 911 calls"With the arrest of the suspect, our work is not done. This has just begun," the sheriff said. Anyone with information is asked to call the St. Lucie County Sheriff's Office or Treasure Coast Crime Stoppers at 1-800-273-8477. Follow us on social: Facebook | Twitter | Instagram | TikTok