あの人達, あの人たち: they, those people

一揃い: a complete set of something, a complete suit of clothes

Alternative spelling of 人殺し

睦仁: a male given name

(of information) being heard from someone else; hearsay

impression that a person gives/attitude that a person shows on a first meeting

(theater) (a single) act

(informal) hop, skip, and a jump (short distance)

mistaking someone for someone else

to mistake someone for someone else