殺到 is read as さっとう (sattou) and means rush.
さっとう
sattou
さつがい
killing
さつじん
murder
さっき
thirst for blood
さつい
intent to kill
せっしょう
さっきだつ
to be seething (with anger)
ころしや
professional killer
さっぷうけい
tasteless
さつじんじけん
murder case
さつじんしゃ
killer
さつじんろぼっと
killer robot
さつじんげんば
murder scene