At least 957 positive cases among students as well as 26 among faculty and staff have been reported, the university confirmed.
Tony Montalto, the president of Stand With Parkland, a group founded by some of the families of the victims, met with the president to celebrate the launch of a school safety initiative.
Illinois law does not explicitly authorize district employees to carry weapons in school, nor does it delegate the authority to make such a decision to local boards.
"These federal resources will help to prevent school violence and give our students the support they need to learn, grow, and thrive," Attorney General William P. Barr said in a press release.
Programs that teach people how to react to active shooter events have picked up popularity in churches and schools.
The four items inside the buckets are meant to reinforce the door in the event of an active shooter and block out smoke in case of a fire.
The school district said a survey also found the public supported an initiative to arm select staff members with guns if it became legal in Pennsylvania.
The school previously said it would put a bucket of river stones in each classroom as defense against potential shooters.
A police affidavit says that three students heard Brennen Michael Shenk make the threat while standing in the school lunch line.
A 16-year-old was arrested for possession of a pipe bomb and other weapons after making threats to kill students online.