The woman who ignited gallons of flammable liquids in her nail salon looking to get an insurance check but ended up killing two Kansas City firefighters was sentenced Friday to 74 years in prison. The stiff sentence for Thu Hong Nguyen was punishment for causing what Assistant Jackson County Prosecutor Dan Nelson called “pain that is real, is ragged and is ongoing” for the families and friends of firefighters John V. Mesh and Larry J. Leggio and for the community. Jackson County Circuit Court Judge Joel P. Fahnestock sentenced Nguyen to 30 years each for two counts of felony murder, to run consecutively, and seven years each for two counts of second-degree assault for two firefighters who were permanently injured. Those sentences will run consecutive to each other and to the murder sentences.