TROY, Ohio -- The third of four children exposed to high levels of carbon monoxide from a furnace in a home has died. 
 
 Thirteen-year-old Jakia Jones died on Sunday, a hospital spokeswoman said. 
 
 Her cousins 14-year-old Dionanna Bishop and 13-year-old Dejah Bishop died on Friday after a relative found them unconscious inside a home in Troy, 20 miles north of Dayton in southeast Ohio. Jakia's 8-year-old brother, Jahari Ward, was in critical condition. 
 
 Preliminary autopsy results released Saturday indicate Dionanna and Dejah, who were sisters, died of carbon monoxide poisoning, the Dayton Daily News reported. Police have said a furnace caused the leak of carbon monoxide, an odorless and colorless gas created when some fuels, such as natural gas, don't burn completely. 
 
 A relative who found the children and called 911 told police the children had been sick for days. The children lived with their grandmother, who was in a hospital on Friday being treated for pneumonia. 
 
 An attorney for the rented home's owners, Joseph and Kathy Caldwell, said they weren't aware of any furnace problems and didn't know that children lived there. Attorney James Ambrose told the newspaper the Caldwells owned the home for 20 years and made repairs whenever they were needed. He said the Caldwells were "devastated" by what happened. 
 
 Police Capt. Chris Anderson said his department will confer with prosecutors to determine if there is any criminal liability. 
 
 Four firefighters were treated for carbon monoxide exposure. The children were unconscious and in cardiac arrest when firefighters arrived. 
 
 CBS affiliate WHIO reported that hundreds of community members attended a vigil Sunday night to remember the children. 

 Community members attend a vigil Sunday night at the Lincoln Community Center in Troy to remember the three children who died as a result of carbon monoxide poisoning. STEVE BAKER / STAFF 
 
 Jakia Jones, 13, died Sunday from carbon monoxide poisoning. She was found unresponsive in a Troy home last Friday. 
 
 By Sharahn D. Boykin 
 
 Staff Writer 
 
 A third teen poisoned by carbon monoxide last week died Sunday, hours before hundreds of community members gathered for a somber candlelight vigil. 
 
 Jakia Jones, one of four children found unresponsive in a South Elm Street home, died at Dayton Children’s Hospital. Jones, 13, her brother and cousins Dionanna Bishop, 14, and Dejah Bishop, 13, were unconscious when they were found in their grandmother’s home, where they lived. 
 
 The Bishop sisters were pronounced dead Friday. They died from carbon monoxide poisoning, according to Troy police. 
 
 Jones’ 8-year-old brother, Jahari Ward, was in critical condition Sunday, according to his uncle, Leon Bishop Sr. 
 
 “He’s fighting; he’s showing signs from stimulus, from us touching him and praying with him,” Bishop said at the candlelight vigil at Lincoln Community Center. “We need prayers to help him fight for his life.” 
 
 The three girls were students at Troy Junior High. Ward attends Heywood Elementary. Grief counselors will be on hand today at both schools. 
 
 The vigil, held near the house where the children lived, packed the community center. Bishop was one of the speakers. Attendees sang, prayed and lit candles. 
 
 “You all give yourselves a hand, please, for coming out,” said Emerson J. Winfield, a community center staff member. “This ain’t a black thing, it’s not a white thing. It’s a God thing.” 
 
 “The community of Troy poured its heart out tonight,” Bishop said. 
 
 He said he hoped that the tragedy would prevent something similar from happening in the future. He stressed the importance of having carbon monoxide detectors installed in homes. 
 
 “This tragedy is an eye-opener,” he said. “Things like this can get out of hand and we can lose lives in our community.” 
 
 This newspaper previously reported preliminary autopsy results on the Bishop sisters showed they “unquestionably” died because of exposure to carbon monoxide, according to Miami County coroners Drs. Christopher Grove and William Ginn. 
 
 According to Troy police, a malfunctioning furnace caused high levels of carbon monoxide and investigators do not believe carbon monoxide detectors were in the home. 
 
 Kettering-based Attorney James T. Ambrose, who is representing homeowners Joseph and Kathy Caldwell, said the owners did not know the furnace was not properly working. 
 
 Investigators plan to review the case with a prosecutor to determine whether criminal charges should be filed, according to Troy police. Additional information on the investigation was not available Sunday. 
 
 The community center will establish a fund at Wright-Patt Credit Union to help the family with funeral expenses. The fund will be in the name of their grandmother, Jean Bishop. 
 
 The center will have grief counselors on site for area youth from noon to 5 p.m. today. 
 
 Funeral arrangements are pending through the Fisher-Cheney Funeral Home. Bishop said he expected to have arrangements finalized today. 
 
 Staff writer Barrie Barber contributed to this report.
– Four cousins were found unresponsive at their grandmother's home in Troy, Ohio, on Friday afternoon after a carbon monoxide leak, and three of them have now died. Sisters Dionanna Bishop, 14, and Dejah (also spelled Dejay) Bishop, 13, died after being taken to the hospital Friday; Jakia Jones, 13, died yesterday. Her brother, 8-year-old Jahari (also spelled Jakari) Ward, remains in critical condition, WDTN reports. The children lived with their grandmother, Jean Bishop, and investigators say the carbon monoxide poisoning was caused by a malfunctioning furnace, the Dayton Daily News reports. Police tell WHIO they are not sure whether the children went to school Friday; a relative came to the home around 2:20pm and found them unresponsive. That person told dispatchers the kids had been sick for days, CBS News reports; it notes the grandmother was in the hospital at the time, where she was being treated for what is thought to be pneumonia. The home is not believed to have carbon monoxide detectors, and attorneys representing the homeowners, Joseph and Kathy Caldwell, say the Caldwells were not aware of any furnace issues. As for Jahari, his uncle says the little boy is "fighting; he’s showing signs from stimulus, from us touching him and praying with him. We need prayers to help him fight for his life."