Washington is the third wide receiver to join Penn State's recruiting class of 2020.
Single-game tickets will go on sale to the general public at 10 a.m. July 2.
James Franklin landed his second recruit within the hour with Amin Vanover's commitment on Friday night.
Taylor is the fourth defensive lineman to commit to Penn State in this recruiting cycle.
Gasparato fought a year-long battle with testicular cancer.
Jennings is a top 100 prospect in the nation and Penn State's highest-rated recruit so far in the 2020 cycle.