(CNN) - We're only nine weeks into 2018, and there have already been at least 12 school shootings in the US.
The parameters CNN followed in this count are:
A shooting that involved at least one person being shot (not including the shooter) A shooting that occurred on school grounds We included grades K through college/university level We included gang violence, fights and domestic violence We included accidental discharge of a firearm as long as the first two parameters are met
March 2: Mount Pleasant, Michigan
Two people were shot to death at a dormitory on the campus of Central Michigan University. The victims are not students and police think the incident stemmed from a domestic situation.
February 27: Norfolk, Virginia
A student at Norfolk State University was shot from an adjacent dorm room while he was doing homework. He was not seriously injured.
February 27: Itta Bena, Mississippi
A person was shot in a rec center at Mississippi Valley State University. Police said the person was not a student and the injury was not life-threatening.
February 24: Savannah, Georgia
A person was shot on the campus of Savannah State University and taken to a nearby hospital where he later died. Neither the victim nor the shooter were university students, the college said.
February 14: Parkland, Florida
A 19-year-old man gunned down students and staff with a rifle at Marjory Stoneman Douglas High School in Parkland, slaughtering at least 17 unsuspecting students and adults. The suspect, Nikolas Cruz, had once been expelled from the high school over disciplinary problems, officials said.
February 9: Nashville
A high school student was shot five times in the parking lot of Pearl-Cohn High School.
February 5: Oxon Hill, Maryland
A high school student was shot in the parking lot of Oxon Hill High. The victim was treated and later released. Police arrested two teens and said they are acquaintances of the victim.
February 1: Los Angeles
A 15-year-old boy was shot in the head and a 15-year-old girl shot in the wrist at Sal Castro Middle School in Los Angeles, officials said. Two other students were grazed by bullets. A 12-year-old girl was booked for negligent discharge of a firearm in that shooting, which was considered "unintentional," the Los Angeles police said.
January 31: Philadelphia
A fight led to a shooting in the parking lot of Lincoln High School, fatally wounding a 32-year-old man.
January 23: Benton, Kentucky
A 15-year-old student shot 16 people -- killing two other 15-year-olds -- at Marshall County High School in Benton, Kentucky, authorities said. The student faces two charges of murder and 12 counts of first degree assault, authorities said.
January 22: Italy, Texas
A 15-year-old student was wounded in a shooting at a high school in Italy, Texas, authorities said. The suspect, a 15-year-old, was quickly apprehended.
January 20: Winston Salem, North Carolina
A Winston-Salem State University football player was shot to death at a campus party. Najee Ali Baker was killed on the campus of Wake Forest University.
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