It commits $125 million for capital improvements like secure doors and windows, metal detectors and security cameras.
"We've got to take action", Hogan said.
One of the students who was hurt is in critical condition according to the sheriff.
A little over a month ago, 17 students and staffers at a Florida high school were killed by a former student who opened fire on them with an AR-15 rifle.
The attack, which lasted less than a minute, ended after the school resource officer, Deputy 1st Class Sheriff Blaine Gaskill, ran inside the building and engaged with Rollins, with both firing a single round nearly simultaneously.
One student died and two were critically injured after an armed student opened fire in the hallway of the Great Mills High School in the U.S. state of Maryland, St. Mary's County Sheriff Tim Cameron said. Officials said the shooter died around 10:40 a.m.at a different hospital.
The officer and the student both fired a single shot at that point, and it wasn't immediately clear whether he took his own life or was killed by the officer's bullet, St. Mary's County Sheriff Tim Cameron said.
An armed school resource officer had also been on the campus of Stoneman Douglas at the time of the shooting there, and came under criticism for failing to stop the gunman, who was armed with an AR-15 assault-style rifle.
A shooting at a Maryland high school Tuesday morning injured three people, including the shooter, a sheriff's spokeswoman said. It comes a few weeks after a threat against the school circulated on SnapChat and other social media platforms.
Speaking to reporters, Dr. James Scott Smith, the superintendent of St. Mary's County's public schools, put the senselessness of it all in perspective.
This is just a few days after threats were made on Snapchat against the school. They responded and found two victims of the shooting, plus the shooter, who was also injured. The suspect was injured and has since died at a hospital, police said.
The shooting occurred on Tuesday morning at the Great Mills High School in Lexington Park, Maryland.
Federal Bureau of Investigation spokesman David Fitz says the agents are there to assist the local sheriff's office and he had no immediate information about injuries or fatalities at Great Mills High School. Shaovon says she immediately got back into her auto and called her mom, and another student told her that there had been a shooting.
Several students from Stoneman Douglas tweeted about the Great Mills school shooting on Tuesday, offering their thoughts and calling for an end to gun violence in schools.