The suspect of last week's deadly arson attack on a Kyoto Animation Co. studio, who is hospitalized for severe burns, remains in serious medical condition, investigative sources said Friday.While some vital signs of 41-year-old Shinji Aoba such as blood pressure are improving, he is still unable to verbally communicate, they said, adding his severe burns raise the risk of infection complications.Having obtained an arrest warrant for murder, police earlier Friday searched Aoba's home in Saitama, near Tokyo. Around 10 investigators entered his apartment looking for any clues that might point …READ FULL ARTICLE