What do the circumstances indicate? That he was there with the group that got into the altercation with the other group and that shots were fired from an SUV, killing a member of the second group. Those things do not indicate that Joseph was either the shooter or even in the vehicle. They don't rule it out, but there are a lot of unknowns here at this time. That the police consider him a person of interest indicates that they believe there is a correlation between the group that got into the fight and the SUV, which the police pretty much has said.
Since Joseph was in the group, they'll want him to tell them who else was part of the group so they can round them up to question them. He'll also have to give his account of the encounter and what happened afterward, including where he went, with whom, etc. He can't be ruled out as a suspect since he was with that group until the information that he provides is investigated. They don't want to call him a suspect, either, though because they have no proof of his involvement beyond the fact that he was with that group of people.
It would have probably been best not to say anything about him being a person of interest because it causes suspicion like we've seen in this thread. But it's hard to keep media from finding out these things.
Yet another young life lost for absolutely no reason whatsoever! https://www.fox4news.com/news/dallas-cowboys-kelvin-joseph-cameron-ray-lower-greenville-murder.amp
