Complex sentence: Stark contacts another friend, a psychotic ganglord in Red Neighbourhood named Ji, to assist him in tracking Alkland down, but something other than kidnapping is to blame for the old man's disappearance.
Split into simpler sentences: Stark contacts another friend, a psychotic ganglord in Red Neighbourhood named Ji, to assist him in tracking Alkland down. But something other than kidnapping is to blame for the old man's disappearance.