Complex sentence: Lara Holland, who lived on High Street in an apartment a floor below Boham, gave an interview in which she said that he "sanitized" his apartment by thoroughly scrubbing it because a gay man had lived there previously.
Split into simpler sentences: Lara Holland, who lived on High Street in an apartment a floor below Boham, gave an interview. She said, that he "sanitized" his apartment by thoroughly scrubbing it because a gay man had lived there previously.