[@Helo]

For a little while, Logan partook in some of the gang violence with Charlie, which would have meant that he was somewhat cool with/neutral towards Ty; or he could've disliked him. Either way, they probably knew each other. Since this was during the second season, Keisha had started hanging around Ty's friends more often. It all depends on when the incident with Charlie pulling a knife on a guy happened and ending their friendship, but if this all happened during or after Charlie's relationship with Keisha, maybe there's a chance that she would have gotten to know Logan as well? 

If this was the case, maybe Keisha & Logan's reactions to seeing each other for the first time in ten years could be something to write about, sort of like Keisha and Kaitlin's encounter? Just something to think about. :sun