1) Someone who isn't a suspect in a crime, but just in consideration.
2) Someone you find attractive, you may try to go and get with, but you only have mild feelings for that person.
1) The man who lived two blocks from the scene was a person of interest in the case.
2) Marty: Hey, that girl over there look good, you gonna ask her out?
Daro: Nah, right now she's only a person of interest.
This is the libel-proof way of really saying "we think this guy is a suspect but we don't yet have probable cause and we want to talk to him and hope he's stupid enough to confess and make our case." But, for some reason, they choose not to come out and say that the person is a "suspect" that they would arrest on sight.
Person of interest means we don't have enough to arrest; suspect means we do.
Chief Smith said: "Witnesses described a bald white male with a 'wifebeater
' shirt as being at the scene of the crime. He is a person of interest in this case and we would like to talk to him."
Also, a politically-correct term for 'Suspect'
was just a small-town loner
who mostly kept to himself. That is, until the authorities
, under pressure from a local, hysterical, small-town power elite
, named him a Person of Interest in a long-standing, as yet unsolved, serial-murder case. Now his life will forever be a living hell