Jennings committed just hours after class of 2025 three-star defensive lineman Yvan Kemajou.
Both players are suspended to deal with a "personal matter," per a Penn State Athletics spokesperson.
Kemajou is ranked as the 12th-best player in Maryland, per the 247Sports Composite rankings.
Palomaki most recently served as a hitting coach in the Philadelphia Phillies organization.
Five cases have been confirmed since mid-March, with six more listed as "probable."
Brendan Young and Daniel Casey each pled guilty more than seven years after Piazza died at a Beta Theta Pi pledge event.