Andrea Ye of Rockville, Maryland — who goes by the name “Alex” — authored a 129-page manifesto detailing her desire to attack an elementary school, writing that she wants to be famous and describing her strategy for carrying out the shooting, Montgomery County police announced in a Thursday press release.

After obtaining a search warrant, MCPD found internet searches, drawings, and other documents related to and threatening mass shootings. The police department said in its statement that it has worked with the county’s public-school district to increase security at local schools.

Ye, currently in custody at the Montgomery County Central Processing Unit awaiting a bond hearing, was charged with threats of mass violence.