Donald Blom took the stand in his own defense and told the jury he was at home in bed when Katie Poirier was abducted and killed late on the night of May 26, 1999. His nearly four hours on the stand Wednesday provided another dramatic day in the fourth week of testimony in his kidnapping and murder trial. Minnesota Public Radio's Stephanie Hemphill reports. { Last week the Virginia courtoom heard a tape of Donald Blom confessing to kidnapping and killing Katie Poirier: a confession he later recanted. Many people, including Katie Poirier's family, have asked why someone would confess to a crime they had not committed. Wednesday, Donald Blom gave his explanation. He said he had recently turned fifty, was suffering from various health problems, and had two small girls to worry about. He said he had "been through this" years ago - referring to earlier convictions for sex offenses - and had been hoping never to have to go through it again. Blom talked about sitting in his Carlton County jail cell, hearing from his wife Amy about things taken away from the family home in Richfield for evidence - "truckloads of things," he said, including the children's school clothes. His wife was afraid to go out of the house, someone threw a firebomb at the house, and she was getting threatening phone calls. Meanwhile, Blom said he was confined to a small cell without a window 23 hours a day much of the time. His voice breaking, he said the last straw was when someone from the FBI told him his wife could be implicated in the crime; she could be charged with transporting Poirier's body to Wisconsin in the trunk of the family car, making it a federal offense subject to the death penalty. He said he felt authorities were deliberately trying to "make him crack." He told defense attorney Rodney Brodin his confession was what he thought investigators wanted to hear.