Century High School students were met with graffiti on their school when they got to class this morning.
A custodian reported the vandalism to police at 5:08a.m.
Marijuana leaves, 666, and profanities were spray painted along the west side of the building.
Police say they caused $300 worth of damage.
No arrests have been made.
The school is offering a $250 reward for anyone who has more information on this case.
They are asked to contact the police department or Century Principal Steve Madler.