According to State v. Harris, there are four considerations for a joint trial:
State v. Harris, 351 S.C. 643, 653, 572 S.E.2d 267, 273 (2002)
And according to State v. Perry, similarity is not one of them:
State v. Perry, No. 2017-001965, 2020 WL 2179238, at *7 (S.C. May 6, 2020)