greg valecce , 53 , had swastikas , stars of david , two variations of the n-word , a penis and other offensive symbols tattooed on his arms .
also suffered three broken ribs , both broke wrists and fractured facial bones .
incident occurred in mayfair , philadelphia , in march/april 2014 .
corry ` corey ' campbell , 21 , believed valecce had harmed his cat .
campbell and four others tortured valecce for three days .
campbell was sentenced to 20 years prison , along with friend carl halin , 18 .
his girlfriend received sandra ng , 18 , received 23 months .
two others are awaiting sentencing .