The briefing
Mason Duggan is listed as owner of the los santos state gas company and is associated with Clock Tower Building, in San Andreas Avenue, Del Perro.
Story connections
Mason Duggan’s introduction connects the character with Thornton Duggan. Those relationships help place this profile within the wider cast.
Appearances
Listed edition: GTA Online. Story Mode and GTA Online take place at different points in the HD timeline, so shared characters can have different roles in each.
Sources & further reading
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