Complex sentence: In addition to music, Mesinai became a graffiti writer and cartoonist, in most cases combining the two, and was, arguably, the first Wild Style graffiti writer in Jerusalem, Israel.
Split into simpler sentences: In addition to music, Mesinai became a graffiti writer and cartoonist, in most cases combining the two. Mesinai later became, arguably, the first Wild Style graffiti writer in Jerusalem, Israel.