Slim Skills is a character mentioned in Grand Theft Auto V and Grand Theft Auto Online.
History
Background
Slim Skills was a member of The Families. It is possible that he was a close friend of Franklin Clinton, as his picture is on Franklin's wall.
At some point prior to the events of Grand Theft Auto V, he was killed.
The photo of Slim can found at Franklin's Aunt's house in GTA V. As of the Bikers Update for GTA Online, a photo of Slim can be seen in the office of a purchasable Motorcycle Clubhouse.