As news of a shooting at Marjorie Stoneman Douglas High School in Parkland spread Wednesday, one Twitter user identifying himself as a freshman student posted live updates from inside.The first post from Twitter user @TheCaptainAidan came at 2:59 p.m. when he wrote, "I am in a school shooting right now..." I am in a school shooting right now...— Aj22000 (@TheCaptainAidan) February 14, 2018Two minutes later, he posted photos from inside what looks to be a classroom, then another 10 minutes later. "Long live Majory Stoneman Douglas High," he wrote.My school is being shot up and I am locked inside. Iím fucking scared right now. pic.twitter.com/mjiEmPvGNb— Aj22000 (@TheCaptainAidan) February 14, 2018Still locked in. I checked the local news and there is 20 victims. Long live Majory Stoneman Douglas High. pic.twitter.com/4kQMAlCBWt— Aj22000 (@TheCaptainAidan) February 14, 2018Responses rolled in, including one from a user who said she had survived a shooting before."Iíve survived this," user @runs_w_woIves wrote. "Youíre gonna be okay. Hang in there sweetie. Stay quiet. Help anyone who is hurt. Stay calm. Itís going to be okay. I promise baby youíre going to be okay.""Itís so depressing that this has become an ĎIíve been thereí type of situation," another user replied.Hello, Twitter. I am closing my DMís but I appreciate everyone contacting me. I am still locked in the school, but remember Iím only a freshman. Please donít just send your love to me, but pray for the victimsí families too. Love you all.— Aj22000 (@TheCaptainAidan) February 14, 2018By 4:25 p.m., the student posted that he had made it outside. "God bless, America," he wrote.We have been liberated. God bless, America. pic.twitter.com/4dikUzpz3Z— Aidan (@TheCaptainAidan) February 14, 2018This is a developing story. Stay with tampabay.com for updates.