Zi:Kill was formed in 1987 and consisted of many influential musicians including Tetsu of D’erlanger and Craze and Yukihiro who is most famously known as the drummer of L’arc en Ciel and the influential 90s band Die in Cries. The song Crack Eye was one of the songs they released in 1992 after a minor hiatus the band underwent after a major dispute with their record company. Zi:Kill went on to become a very successful act, reaching number 5 on the Oricon with their last album and even going to play the Budokan in 1993. Sadly the band ceased activities a year later. The heart of Zi:Kill consisted of Tusk on vocals, Ken on guitar, and Seiichi on bass. Past drummers included Masami, Yukihiro, Tetsu, and finally Eby who was the drummer until they disbanded.
Main source was Wikipedia.