A second so-called "hit-list" was discovered at Meadowbrook Middle School Friday, just a day after another student was detained for a similar incident.
A seventh-grader was detained, the San Diego County Sheriff's Department confirmed to NBC 7.
As a precaution, the students whose names were on the list were notified.
"What do you know? This is all new territory -- a different world," said parent Tony Calafato.
Calafato has three children in the Poway Unified School District.
"We moved to Poway for the school district," said Calafato. "It's a great school district with good teachers and a lot of concerned teachers. But this goes to you, it happens everywhere."
The first "hit-list" with the names of staff and students from the Poway school was discovered around 11:30 a.m. Thursday. An eighth-grade student was detained, Sheriff's officials said.
Everyone whose name was on that list was also notified and SDSO increased patrols at the school Friday.
Deputies will also increase patrols at the school on Monday.
Meadowbrook Middle School is located on the 12000 block of Meadowbrook Lane, just off Pomerado Road.
Anyone with information about this incident is urged to call the Crime Stoppers anonymous "Students Speaking Out" hotline at (888)580-8477.