david serbeck , 42 , was found guilty in 2012 of unlawful sex with a 17-year-old girl in 2007 and sentenced to up to 10 years in prison .
another teenage girl 's father , reginald campos , shot serbeck in 2009 for stalking his daughter , severing his spine and leaving him paralyzed .
his 17-year-old victim came forward after campos shot him .
serbeck 's defense now argues jury gave him a long sentence after being led to believe he was shot while out looking for more girls to exploit .