EXCLUSIVE
The alleged incident went down back on Sept. 5 outside a studio ... according to the L.A. County D.A.
Katt was arrested this morning when he showed up in court for an assault case -- and Suge was picked up in Las Vegas.
Both men have pretty lengthy rap sheets ... and as a result the D.A.'s Office says Suge could face up to 30 years to life in state prison -- while Williams could be nailed for up to 7 years.
Story developing ...
