join the fight at alz.org/walk. we turn next here this evening to that new video sharking outrage in chicago. the man accused of harassing a woman wearing a t-shirt with the puerto rican flag. and there are now new questions about a police officer also seen in that video. here s abc s alex perez. you should not be wearing that in the united states of america. okay. reporter: in the disturbing to watch, now gone viral video, this man can be heard verbally assaulting mia irizarry because she s wearing a t-shirt with a puerto rican flag. my point is, why are you wearing that? because i can. reporter: as the barrage of insults continues at this chicago forest preserve, irizarry pleads with a nearby officer to help. officer, i feel highly uncomfortable, can you please grab him? are you an american citizen? please, officer? reporter: puerto rico, a u.s. commonwealth, is home to nearly