The suspect in a deadly arson attack on a Kyoto Animation Co. studio -- since hospitalized with severe burns -- has started rehabilitation after his condition improved to the point where he can sit down, sources close to him said Tuesday.Police have obtained an arrest warrant for Shinji Aoba, 41, on suspicion of murder and arson, among other charges, in the July 18 attack that killed 36 people. They have no prospect of arresting him until doctors determine that he can withstand confinement.The suspect, who had been bedridden at an Osaka hospital, is now able to sit in a wheelchair and will …READ FULL ARTICLE