Lucky for you, I do in fact know a good deal about this subject. Here is the scoop:
Trevor's dad Jeremy did indeed go to Riverheads. However he did not finish there. He played basketball (after all he is 6'7") and I remember one tournament game in particular when he almost single-handedly led the number 7 seeded (i.e. the lowest seed) Gladiators to an upset road win over # 2 Stuarts Draft. If I was at home now instead of work, I could tell you the exact year it was.
At some point, he transferred to Fishburne and graduated from there. I honestly do not recall which year in school that was. If I had to guess, I would say he was still at RHS through his junior year and only spent one year at Fishburne but don't quote me on that.
Jeremy's mother still lives in the Greenville area and needless to say has been ecstatic about Trevor's career at Clemson. She went to the game and although I have not talked to her since she returned, she texted me the word "AMAZING" after midnight Monday night.
I have tried to encourage her to do an interview with the local paper and maybe she will. As for the connection to Jaden Phillips, I am sure there is one, but I am not aware of exactly what it is.
I am "somewhat" related to Trevor and Jeremy myself, but it is such a convoluted, long connection that I should hardly claim it at all, but it does exist. I have never met Trevor but of course knew Jeremy in his days and still know the grandmother, who is course closer to my own age and therefore closer to being related to me.