It started going off the rails when a man approached her asking her why she was wearing a sleeveless Puerto Rico flag shirt, which also had "Puerto Rico" written below the neckline.
She responded yes. All those born in Puerto Rico are US citizens.
Last month, Mia Irizarry was celebrating her birthday at Forest Preserves of Cook County in IL.
"We don't know what was happening outside the video; we don't know what was going on inside his (Conner's) head at the time", the attorney, Tamara Cummings, said Thursday. "You know that", the man says in the video.
The police officer turned and walked back to his police vehicle without responding, as the irate man followed her out onto the grass. "Are you a United States citizen?"
The man continued to criticize her, even as more cops arrived, saying, "You're not American, if you were American you wouldn't wear that".
He then asks her twice if she is a citizen, which she says she is.
"Officer, officer, I feel highly uncomfortable", Irizarry pleaded with him.
A Hunter College student from Somers who volunteered to help fix and reconstruct many homes in Puerto Rico decimated by Hurricane Maria shared her experience with News 12.
"Why is she wearing that ****?" the man says.
Reports identify the man as Timothy Trybus, 62, and 10 minutes into the video, more police officers arrive.
The Forest Preserves of Cook County said Saturday that it "immediately launched an investigation pursuant to our personnel policies into the response of our officer".
A video that went viral on Monday has earned a Chicago police officer desk duty for an incident that happened a month ago. Puerto Rico Governor Ricardo Rossello responded on Twitter, "Today a video surfaced of an undignified event in which a Puerto Rican woman was brutally harassed by a bigot while an officer did not interfere".
Irizarry gives a statement to the police officer, Connor, who had stood by earlier. "Can you please grab him?" to which he turns his head and walks in the opposite direction.
'We will be looking into this incident as our offices in DC are in contact with local and state authorities, demanding that this officer be expelled from the police force, ' Rosello tweeted on Tuesday. "People have just as much right to be here as you and when you're drunk, you don't belong here".
Irizarry is seen filing a formal complaint and says that the initial responding officer did "absolutely zero". I am appalled, shocked & disturbed by the officer's behavior.
Cummings said another union attorney who is representing Connor has not had a full sit-down interview with him yet, and neither has the Forest Preserve District Police Department. Although Puerto Ricans are US citizens, they must register in one of the 50 states to vote in presidential elections.
Rosello also called on Cook County Board President Toni Preckwinkle to take the matter "into her hands". "In this case, a U.S. citizen questions the citizenship of another USA citizen and American law-enforcement just sits back and watches".