Spellman was charged with aggravated assault, making terroristic threats, unlawful possession of a knife and possession of a knife for an unlawful purpose, reports the Central New Jersey newspaper.
The 36-year-old was held at the Burlington County Jail held on $100,000 bail.
Spellman tested the waters for a career in MMA in November 2006, when he fought Antoine "Herc" Hayes at XFO 13 "Operation Beatdown" at the Sears Center near Chicago, Illinois. Spellman won via unanimous decision but never competed again.
