NEW : Arizona did not complete investigation of David Kwiatkowski . -- Temple University Hospital , Philadelphia , April 2010 ; . NEW : The FBI has been unable to locate the person who made a 911 call about the shooting at Marjory Stoneman Douglas High School in Parkland, Florida. Kwiatkowski worked in at least eight states as a lab technician . He also worked at a New Hampshire hospital where 30 patients got hepatitis C .
NEW : Arizona did not complete investigation of David Kwiatkowski . NEW : The FBI has been unable to locate the person who made a 911 call about the shooting at Marjory Stoneman Douglas High School in Parkland, Florida. Kwiatkowski worked in at least eight states as a lab technician . He also worked at a New Hampshire hospital where 30 patients got hepatitis C .