The "over there" part is implied, just like in English. If you really want to say over there you can say "저기 있는 사람이"

이다 --> 입니다 있다 --> 있습니다

The former is to be and the latter is like existing. So essentially like "i am a student" vs "there is a student" 저는 학생입니다" vs "학생있습니다" being a student vs a student existing. It's hard to distinguish but once it clicks you just get it