Authorities in southwest Arkansas have found the remains of a child in a black garbage bag while searching for 4-year-old Maleah Davis, Houston police Capt. Michael Skillern told reporters Friday.A road crew noticed the bag two days ago as they were cleaning up the interstate, but decided to leave it alone, Hempstead County Sheriff James Singleton said. Mowers ran over the bag at some point today. The body hasn't been identified."It's going to be a child," Skillern said at the scene.Law enforcement officials began combing areas along Interstate 30 after community activist Quanell X met with Houston police to discuss information he said he obtained from Derion Vence, the suspect in Maleah's disappearance. Vence confessed to killing the girl and dumping her body in Arkansas, Quanell X said."He says it was an accident. And he confessed to me where he dumped her body, " the activist said.The confession reportedly happened during a jailhouse conversation he had with Vence, who is the ex-boyfriend of Maleah's mother, Brittany Bowens."He felt like he was just totally overwhelmed, because Brittany wasn't being the mother she should be being," Quanell said Vence told him.Vence remained in Harris County jail Friday afternoon, according to the local sheriff's office.Vence was engaged to Maleah's mother, and was tasked with caring for the girl from April 30 to May 3 while her mother was out of town. Maleah was reported missing May 3.Quanell X would not give any other details about how the girl died, or where in Arkansas her body was dumped. But he said the description of the location was accurate."He was very specific with the amount of distance and time. When I was able to leave and look it up on my phone, he was to the point on the distance and time, " said Quanell X."He said that he pulled over in Arkansas, got out of the car, walked to the side of the road, and dumped the body off the road."Authorities haven't identified the contents of the black garbage bag in Fulton, aside from the fact that it contained blood and worms and had a foul odor.Deputies were searching near the city of Hope, but arrived at Fulton after contacting a road crew that contracts with the county for leads. The bag was found near exit 18 of Interstate 30."One of the machines hit the bag and tore it open," Singleton said.Some of the bag's contents scattered."It's over an area," he said.Fulton is approximately 20 miles from the Texas-Arkansas border.Harris County District Attorney Kim Ogg said that her office is continuing to work with Houston police to bring justice for Maleah."Let’s let search teams do what search teams do," she said. "We have spoken with the defendant’s lawyer and there is no agreement."Houston detectives met with Tim Miller, founder of Equusearch, and Quanell X at a strip mall near NRG Stadium on Friday afternoon. They later confirmed that they were en route to an undisclosed location in Arkansas."I think it's true enough that I have an airplane lined up at 3 p.m. to fly a detective, and several officers to go up there and go ahead and start the search," Miller said.Miller also said he's spoken with law enforcement officials in Arkansas.Quanell X had been speaking for Bowens in the wake of Maleah's disappearance. He appeared with her in multiple interviews and in a court hearing on May 13 for her Vence, her former live-in boyfriend, who has been charged with tampering with a corpse in connection with the case.He recently said he is no longer representing Bowens.Friday morning, Vence's attorney Dorian Cotlar filed a motion prohibiting Quanell X from visiting Vence after learning the family’s former representative had beat him to the Harris County Jail. The facility at 701 San Jacinto Street does not generally allow inmate visits on Fridays, except for lawyers, ministers and sometimes community leaders.“We know Quanell X as a community leader,” Harris County Sheriff’s Office spokesman Jason Spencer said. “When a community leader asks to visit an inmate, we generally allow it, as long as the inmate agrees to the visit.”Quanell X claims that his visit with Vence — which Cotlar says happened around 9 a.m. — garnered a supposed confession.“Quanell X completely misled my client,” Cotlar said. “I don’t know how he was able to get into the jail.”“He said he was going to provide lawyers, that everything was going to be fine,” he said.Cotlar added that details that Quanell X alleged to have learned from Vence did not happen.“My client did not confess to Quanell. He did not use the word accident with Quanell,” Cotlar said. “I’m not sure why the DA’s Office and Texas Equusearch are giving validity to anything (Quanell) says.”“Quanell makes his living off of reward money,” he continued.Cotlar is the second attorney to represent Vence after Thomas Burton withdrew as counsel this week because the family could not pay for his services."It's too complex of a case to be working on for free," he said, adding that he was privately attained. He said he received some compensation, but it wasn't enough.Burton also said that when he represented Vence, he told him not to speak to anyone. Burton also questioned Quanell X's role in the case."It certainly appears he's attempting to practice law without a license," Burton said.Quanell X also told Vence that he was "going to be representing him," Cotlar said.Vence was under the impression that his family had sent Quanell X after Burton withdrew and that Quanell X was taking over representation, according to Cotlar.In a phone call, Quanell X said he was not representing Vence or his family at the time of his visit.He said he went to see Vence at the jail because “I wanted to.”“I felt like I needed to,” he said.Julian Gill and Danny Hermosillo contributed.