A teacher from the Parkland, FL high school where a tragic school shooting took place in February, left his loaded pistol in a public bathroom according to The New York Post. 

Sean Simpson, 43, who teaches at Marjory Stoneman Douglas High School, was being trained to carry a pistol in response to the Feb. 14 mass shooting. Simpson volunteered to learn how to use the weapon. During a beach outing to Deerfield Beach Pier on Sunday, the science teacher left his 9mm Glock in the restroom. 

By the time he remembered, 69-year-old Joseph Spataro, who is homeless and was drunk at the time, took the gun and began shooting. Simpson quickly snatched the gun back from him and the bullets were found inside the concrete bathroom wall. No one was injured.

"There was a reasonable likelihood that the firearm could have ended up in the hands of a child or the discharge of the firearm could have wounded another person or child," officers said in a police report obtained by ABC News.

In the wake of the February shooting, Simpson told local reporters, "I was running from the sound of gunfire … in a high school I felt safe in,"  he said. "That's not OK, that never should be a thing that could happen …These kids are demanding action, they're going to cause change." 

After the shooting, President Trump was adamant about arming teachers with guns as a solution. When asked how he felt about this, Simpson said he doesn't fully agree with Trump's suggested methodology. 

"I know there are some of us that are willing to take the training if it was offered and probably be another line of defense," he said. "But again that is a complicated subject and I'm not sure if it's the answer. I think it's easier to get these types of weapons out of the hands of people that aren't meant to do anything but kill."

NPR reports Simpson was arrested and charged with failing to safely store a weapon and posted a $250 bond. The Broward School Board voted "to reject the state's new program to arm school staff in the wake of the Marjory Stoneman Douglas High shootings," earlier this week.