Police are keeping an open mind on the motive behind the incident last night while some witnesses said the crash appeared to be intentional.
Police have not yet identified the victims, but described them as adult males.
Adamson said the FBI is assisting with the investigation but declined to say whether investigators believed the incident was intentional.
Adamson said authorities are speaking with the driver, but she did not say whether he had been charged. "Nothing is out of the question".
The driver was taken into custody, by police. She said the other man was expected to survive.
Our thoughts and prayers are with those affected by the unfortunate accident that occurred when the Stonewall Pride Parade was just getting started.
"To my knowledge, this was not an attack on the LGBTQ community", Knight said in his statement.
Edwin Poots resigns as leader of the DUP
The 55-year-old creationist quit after an emergency meeting was held at the party's headquarters in Belfast . The pair also drove from Stormont House without speaking to the media.
"As reports come in and more details unfold, we send love to our #LGBTQ family and all those impacted by the events that took place today at the #Pride event in #WiltonManors-including our #PFLAG chapter members", they tweeted. "Video of the arrest showed the driver wearing a gay men's chorus t-shirt, which was more than enough to [sow] reasonable doubt about the intent of the driver", Florida-based radio host Grant Stern wrote on Twitter.
One person died and another was hospitalized, said the Broward County Sheriff's Office.
"We are devastated having witnessed this horrific incident". Sheriff Gregory Tony said the incident happened "within feet" of him and his team, but he did not elaborate, simply saying late Saturday that "authorities are still gathering information".
Wilton Manors Mayor Scott Newton said in a statement that the investigation is ongoing.
Wilton Manors police tweeted Saturday night that the public is not in danger.
The vehicle also narrowly missed hitting a convertible that Rep.
In a statement, Wasserman Schultz said she was safe but "deeply shaken and devastated that a life was lost".
June is Pride Month, commemorating the June 1969 police raid targeting gay patrons at the Stonewall Inn in NY that led to an uprising of LGBTQ Americans and served as a catalyst for the gay rights movement.