While the gang had a presence in the first game, existing as a part of John's past and a part of the story's framework, in Red Dead Redemption 2, they're ... the former members that appear in ...

A former member of the O’Driscoll gang that turned tail, Kieran was captured and killed by his former gang later in Red Dead Redemption 2. He can be found buried just east of Braithwaite Manor ...