Watching this Irish mob documentary and they are making him out to be a saint almost lol

The only bad thing I heard really was kidnapping Jimmy Coonans dad for ransom which in turn fueled the rivalry that eventually got him killed but doesn't talk about him ever killing anyone but as head of the Irish mob in that era I find it hard to believe

I guess this documentary is just sugarcoating it because most of the people they are interviewing were his friends and family