Members of Congress and residents out for a morning stroll stumbled onto a bloody scene Wednesday after gunfire erupted at a baseball field in the Del Ray neighborhood of Alexandria, Va., where the Republican lawmakers were practicing for the upcoming congressional baseball game.

Multiple congressman at the scene said Rep. Steve Scalise, R-La., was among those wounded. Police in Alexandria, Va., said a suspect was in custody. Without Capitol Police, "it probably would have been a massacre," Sen. Rand Paul, R-Ky., who was there, told MSNBC.

Katie Filous, 29, said she was walking her dogs near the baseball field when the first shots rang out. At first, she thought the noise was related to a pitching machine at the field. Then she heard screams.

"They were screaming, 'It's a shooter! He's got a rifle! Get down!' I laid down on the ground. There were a lot of shots. Maybe about 20."

From her vantage point behind a tree, she saw a security officer leave a nearby SUV and attempt to confront the shooter with a handgun. "I saw the officer get hit, kind of slumping near the SUV," Filous said. "I saw two people being carried away on stretchers. The (wounded) officer was airlifted out.

"I was doing what I could to not get killed."

Rep. Mo Brooks, R-Ala., told CNN that another congressman, Rep. Brad Wenstrup, R-Ohio, from Cincinnati, used some kind of scissors to cut through Scalise’s pant leg to get to his wound. Wenstrup is a podiatrist who served as a combat surgeon in Iraq.

“After the shooter was down … we deferred to (Wenstrup’s) judgement on what to do,” Brooks told CNN. Wenstrup “was getting some kind of scissors device to cut through the pants” to get to the wound on Scalise.

Speaking to CBS News, Wenstrup said about four or give people were hit.
"Once they had (the suspect) down I went out to Steve Scalise. I felt like I was back in Iraq as a surgeon. And Steve was conscious and okay. And that’s all I’ll say about that. They got him out of here and the others," he said.