A grand jury trial which could indict a US art professor who used bacterial strains in his art and kept DNA amplification equipment in his home began on Tuesday. The case of Steven Kurtz, of the University of Buffalo, New York state, has received much attention after the FBI became involved following the sudden death of his wife on 11 May 2004.Paramedics, who arrived too late to save her when she stopped breathing, spotted Kurtz’s bacterial cultures and lab equipment. They alerted the FBI, who confiscated his computer, books, ID and lab equipment.