Forrest was born on May 22, 1999, and attended Walnut Ridge High School in Columbus, Ohio.

[1] A 3-star recruit, Forrest committed to play college football at Cincinnati over offers from Ball State, Bowling Green, Eastern Michigan, Miami (OH), Ohio, Toledo, and Youngstown State.

[10] In Week 10, Forrest recorded an interception and a fumble recovery in Washington's 32-21 upset victory over the undefeated Philadelphia Eagles.

[11][12] Before the Week 11 game, Forrest was made the starting free safety taking over for Bobby McCain.

[13] Forrest recorded his third career interception in Washington's 23–10 victory over the Houston Texans.