Graffiti scribbled onto a stall wall in a Temple University's men's bathroom warned of a "lesson" on the 14th anniversary of the Columbine High School shootings.
The Temple University Police Department issued an advisory Friday that the two messages, which was found in Gladfelter Hall in March, referenced the murders of 13 people on April 20, 1999 at the Colorado school.
The messages read "April 20th I'll bring honor to Eric Harris and Dylan Klebold," which references the two seniors who opened fire on the school population and then committed suicide. The second message read, "April 20th you will all learn the meaning of suffering."
"We want to assure you that the safety of the Temple community is our top priority and every effort is being made to keep our students, faculty and staff safe," according to the advisory.
Extra security is planned for this Saturday.