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 A Missouri woman who authorities say was held against her will and kept in a wooden box for months earlier this year was found dead with her teenage son on Thursday — just three weeks after escaping from her alleged captor. 
 
 Police in Clinton, Missouri, said Sandra Kay Sutton, 46, and her 17-year-old son Zachary Wade Sutton were found dead of apparent gunshot wounds early Thursday morning at the home of a family member and that Sutton's former boyfriend and accused kidnapper is a suspect in their deaths. 
 
 Authorities are searching for James B. Horn, 47, who has been on the run after authorities in Sedalia, Missouri, charged him with kidnapping, armed criminal action and unlawful use of a weapon in an incident involving Sutton on April 30. 
 
 The Missouri State Highway Patrol SWAT team and local law enforcement surrounded Horn's home in Sedalia earlier Thursday afternoon, but were unable to find him upon entering, Sgt. Bill Lowe of the Missouri State Highway Patrol told NBC News. 
 
 Authorities were also searching for Horn in abandoned homes in the area, after an officer found Sutton's car near a local hospital. Surveillance video showed an unidentifiable person walking in the direction of the abandoned houses, Clinton police Lt. Sonny Lynch said at a news conference. 
 
 Sgt. Lowe said authorities had searched and cleared at least two abandoned homes in the area and have not found Horn. He is considered armed and dangerous. 
 
 "All of our searches came up empty, so we aren't currently aware of where he is now," he said. 
 
 Just three weeks ago, officers responded to a report of a woman who said she had just escaped from a male who was had been keeping her captive for months, officials said. 
 
 The woman said that she had been kept against her will since January, and had been imprisoned in a wooden box at the residence. 
 
 Sedalia Police Department Chief John DeGonia told the Sedalia Democrat that Sutton said her initial relationship with Horn "began as consensual, but it eventually led to 'you can't leave.'" 
 
 Sutton was able to escape and run to a neighbor's house for help, according to the release. Upon checking the residence, police say they found a large wooden box at the home, and that the suspect had fled the scene prior to their arrival. 
 
 Horn is a registered sex offender who served time in prison in an unrelated kidnapping and sexual attack, according to The Associated Press. He served roughly three years in prison in the early 1990s for a kidnapping and rape in Tennessee, according to the AP. 
 
 He also served a nearly 13 year sentence for kidnapping and abducting his estranged wife in 1997. He was released from custody in 2011 and his probation jurisdiction was transferred to Missouri in 2012. 
 
 On Thursday at around 4:30 a.m., Sutton and her son were found dead by their family members, who had left the night before to go to work, Lynch said. 
 
 Lynch said Sutton had not sought an order of protection against Horn and authorities did not know she was staying with relatives in Clinton, but that Horn had an outstanding warrant for his arrest in the alleged kidnapping incident. 
 
 "The real driving factor in these deaths is absolutely not the victim," he said. "It's who victimized them and we believe it's Mr. Horn." ||||| SEDALIA, Mo. (AP) — The hunt for a registered sex offender suspected of killing his ex-girlfriend and her son intensified Thursday after police raided but failed to find anyone inside a home in western Missouri, where the man was charged last month for allegedly keeping the woman confined in a wooden box. 
 
 A Sedalia police officer was on alert Thursday, May 21, 2015, at a standoff in Sedalia, Mo. where police believe they have a suspect in the slayings of Sandra Sutton and her teenage son Zachary Wade... (Associated Press) 
 
 Sedalia police officers are on alert Thursday, May 21, 2015, at a standoff in Sedalia, Mo. where police believe they have a suspect in the slayings of Sandra Sutton and her teenage son Zachary Wade Sutton.... (Associated Press) 
 
 FILE - This file photo provided by the Missouri State Highway Patrol shows James Barton Horn Jr., of Sedalia, Mo. Police are searching for Horn after finding Sandra Kay Sutton, 46, and her son, Zachary... (Associated Press) 
 
 Sandra Kay Sutton, 46, and her 17-year-old son, Zachary Wade Sutton, were found dead early Thursday morning in a relative's home in Clinton. Both victims appear to have been shot overnight, while Sutton's relatives were at work, Clinton police Lt. Sonny Lynch said. 
 
 Police have been searching for her former boyfriend, James Barton Horn Jr., since he was charged with kidnapping three weeks ago. Investigators allege he kept Sandra Sutton in a wooden box off-and-on for four months at the same home they searched Thursday in Sedalia, about 45 miles northeast of Clinton. 
 
 Horn, who served time in prison for a kidnapping and sexual attack, disappeared before police could arrest him on the kidnapping charge. Lynch said Horn is "absolutely" a suspect in the deaths. 
 
 A police officer found a car that Sandra Sutton had used outside a hospital in Sedalia, Lynch said. Surveillance video from the hospital showed a man authorities believe was Horn walking away from the car and toward nearby houses at 4:15 a.m., the lieutenant said. 
 
 One of the houses, a few blocks from the hospital, was where Horn allegedly kept Sutton confined in the box. Sedalia police cordoned off that home, where they thought Horn might have been hiding. They surrounded the home for hours, calling to Horn to come out and deploying a robot to search the area, but officers found no one once they went inside, said Sgt. Bill Lowe of the Missouri State Highway Patrol. 
 
 They also searched two unoccupied homes nearby. 
 
 Federal authorities also are helping search for Horn, who is currently under the supervision of federal probation officers. 
 
 Lynch warned that Horn was an "extremely dangerous, violent person," and that anyone providing him shelter could face charges if they were aware of the pending kidnapping charges. He said Clinton authorities were unaware Sutton was staying in the area, and that court documents don't indicate she sought any protective orders again Horn. 
 
 Sutton told police in late April that Horn had threatened her in a car with a "tire jack" after an argument in January. When they returned home, he began building a wooden structure, and she had to help with its construction, according to a probable cause statement filed by Sedalia police. 
 
 Sutton was allowed to leave the box in the evenings when Barton returned home from work, according to court documents. 
 
 Police said the box was kept in a bedroom and contained a bucket full of urine and feces. The box, which investigators said was 100 inches long, 48 inches wide and 52 inches tall, also contained several layers of insulation, padding and sleeping bags, and a small air hole. 
 
 Sutton escaped April 30 and ran to the home of a neighbor who called police — but Horn was gone by the time police arrived. 
 
 A neighbor, Roeanna Wright, said she saw Sutton crouch down after running from the couple's home in April. Her husband, Lloyd Wright, said she looked panicked, adding: "She was crouched down like she was trying to hide when she ran." 
 
 Horn served about three years in prison in Tennessee in the early 1990s in connection with a kidnapping and sexual attack. Records also show he pleaded guilty in 1997 in Mississippi to unlawfully kidnapping and abducting his estranged wife. He was sentenced in that case to 12 years and 11 months in prison, plus five years supervised release. 
 
 He was released from custody in December 2011, and his probation jurisdiction was transferred in 2012 to Missouri, according to online court records. He was still under federal supervision, said Chad Lamar, spokesman for the U.S. Attorney for the Northern District of Mississippi. 
 
 "There has been an effort to locate him on the local, state and federal level," Lamar said Thursday. 
 
 Horn's attorney in the Mississippi case declined comment Friday. 
 
 ___ 
 
 Sudekum reported from Kansas City, Mo. ||||| These crawls are part of an effort to archive pages as they are created and archive the pages that they refer to. That way, as the pages that are referenced are changed or taken from the web, a link to the version that was live when the page was written will be preserved.Then the Internet Archive hopes that references to these archived pages will be put in place of a link that would be otherwise be broken, or a companion link to allow people to see what was originally intended by a page's authors.The goal is to fix all broken links on the web . Crawls of supported "No More 404" sites.
– A fugitive suspect who allegedly kept a woman captive in a wooden box for months may have surfaced to murder her and her son, according to police in Missouri. James Barton Horn Jr. has been on the run since the end of April, when Sandra Sutton ran to a neighbor's house and said he had been locking her in the box whenever he wasn't home, the Kansas City Star reports. When police were called, they found the plywood box—100 inches long, 48 inches wide, and 52 inches tall, according to the AP—and discovered Horn had fled. Yesterday, Sutton and her 17-year-old son were found shot dead at the home of a family member, and police say Horn is a suspect, NBC News reports. The family member's home is in Clinton, nearly 50 miles away from Horn's home in Sedalia. According to the Sedalia Democrat, Sutton told police that her relationship with Horn began as consensual but then led to "you can't leave." Police warn that Horn, 47, is an "extremely dangerous, violent person," and the AP reports that he has a long and disturbing criminal past. Records show that he spent three years in prison in Tennessee in the early '90s for a kidnapping and rape; at the end of 2011, he finished a 13-year sentence for kidnapping his estranged wife in Mississippi. A police spokesman in Clinton tells the Star that authorities were unaware that Sutton was living in the city and she had apparently declined to seek a protection order—though he adds that it may not have helped, because "he'd done these things and he was on the run."