Crime Rachel Brosnahan and Richard Marx, Who Grew Up in Highland Park, React to July 4th Parade Shooting "My heart is broken for the families in Highland Park affected by today's shooting," said actress Rachel Brosnahan, who like singer Richard Marx, spent her childhood in the Illinois suburb By Alexandra Schonfeld Alexandra Schonfeld Twitter Digital News Writer, PEOPLE People Editorial Guidelines Updated on July 5, 2022 08:20 PM Share Tweet Pin Email Rachel Brosnahan and Richard Marx, who both grew up in Highland Park, are sharing their shock and sorrow after Monday's mass shooting in the Illinois suburb. A gunman from a nearby rooftop opened fire on hundreds of people gathering in the central business area for the annual Fourth of July parade. At least 6 people have died, while more than 24 have been injured. Highland Park is about 27 miles north of downtown Chicago. Per the 2020 census, the city is home to 30,176 people. The July 4th parade is a one of Highland Park's signature events, Brosnahan said on Monday. "I grew up in Highland Park and this parade is a highlight of the year for so many families," the Marvelous Life of Mrs. Maisel actress, 31, tweeted on Monday afternoon. "I'm sick to my stomach every time news like this comes out, but I don't wish the pit in your stomach as you call your family and friends to make sure everyone is okay on anyone," she wrote. "No words." Richard Marx and Rachel Brosnahan. getty (2) In a follow-up tweet, Brosnahan shared a donation link to the Everytown for Gun Safety Action Fund along with the words, "Enough is enough is enough is enough is enough is enough is enough is enough is enough." For more on this story, listen below to our daily podcast PEOPLE Every Day. On Instagram, the actress spoke more about her experience growing up in Highland Park. "I grew up in Highland Park and spent nearly every day after school and every weekend being stupid with friends directly across from where today's shooting occurred. I never once considered that I be unsafe there," she wrote in an Instagram story. Rachel Brosnahan, who grew up in Highland Park, shared her reaction to Monday's tragedy. Brosnahan shared her thoughts both on Instagram and Twitter. The actress shared donation links for Everytown for Gun Safety. L: Caption Rachel Brosnahan, who grew up in Highland Park, shared her reaction to Monday's tragedy. PHOTO: rachel brosnahan/instagram C: Caption Brosnahan shared her thoughts both on Instagram and Twitter. PHOTO: rachel brosnahan/instagram R: Caption The actress shared donation links for Everytown for Gun Safety. PHOTO: rachel brosnahan/instagram At Least 6 Dead After Gunman Opens Fire at July 4 Parade in Highland Park, Illinois "My heart breaks a little bit more every time the news cycle lights up with news of yet another mass shooting, but today's news adds a whole new meaning to the phrase 'hitting home,'" she wrote on the next slide. She continued, "the definition of insanity is doing the same thing over and over and expecting different results. We have lost our minds. My heart is broken for the families in Highland Park affected by today's shooting." Around the same time, Marx shared that he was "actively reaching out to check on the welfare of people," he still knew in the area as he also grew up in the Chicago suburb. "My heart is always broken by these constant mass shootings no matter where they occur but today I'm extra heartbroken," the "Right Here Waiting" singer, wrote on Twitter "And extra angry at the senselessness." President Joe Biden released a statement too about the shooting, saying he and First Lady Jill Biden are "shocked by the senseless gun violence that has yet again brought grief to an American community on this Independence Day." "As always, we are grateful for the first responders and law enforcement on the scene. I have spoken to Governor Pritzker and Mayor Rotering, and have offered the full support of the Federal government to their communities," he said. "I also surged Federal law enforcement to assist in the urgent search for the shooter, who remains at large at this time." "Members of the community should follow guidance from leadership on the ground, and I will monitor closely as we learn more about those whose lives have been lost and pray for those who are in the hospital with grievous injuries," Biden added. "I recently signed the first major bipartisan gun reform legislation in almost thirty years into law, which includes actions that will save lives. But there is much more work to do, and I'm not going to give up fighting the epidemic of gun violence." Names and ages of those killed on Monday have not been released by police, though Lake County Coroner Jennifer Bank said in a press conference that they've been identified and officials are working on contacting their families. Five people died on the scene, Bank said; all adults. Another died from injuries sustained in the shooting after being transported to a local hospital, though Bank did not know any information about the deceased's age. Highland Park Fire Chief Joe Schrage said at least one child was transported to the hospital from the scene, who was "critically injured." Robert E. Crimo, III was later identified as a "person of interest" in connection with the shooting. The 22-year-old, who goes by "Bobby," was taken into custody Monday evening without incident. Police said in an evening news conference that they are still considering Crimo a "person of interest" and not yet a suspect while they continue to investigate the shooting. Authorities previously said they suspect he acted alone. A firearm, a high-powered rifle, was secured at the scene. Anyone — including spectators and business owners — who might have video surveillance of the area before, after or during the shooting are being asked to turn their footage into police. The FBI is collecting information as well via 1-800-CALL-FBI. The aftermath of Monday's parade shooting in Highland Park, Illinois. TANNEN MAURY/EPA-EFE/Shutterstock Want to keep up with the latest crime coverage? Click here to get breaking crime news, ongoing trial coverage and details of intriguing unsolved cases in the True Crime Newsletter. "Our community was terrorized in an act of violence that has shaken us to our core," Highland Park Mayor Nancy Rotering said in a statement. "On a day that we came together to celebrate community and freedom, we're instead mourning the tragic loss of life and struggling with the terror that was brought upon us." According to Gunviolencearchive.org, there have been 309 mass shootings this year in the United States. Since the story first broke in Highland Park Monday morning there has been another mass shooting, the website reported, in Kansas City, Missouri.