Cubs first baseman Anthony Rizzo — a graduate of Marjory Stoneman Douglas High School in Parkland, Fla., in 2007 — sent out a message pleading for “change” hours after the mass shooting at the school Wednesday.

Thursday morning, Rizzo left camp and returned to South Florida to console family and friends.

In a tweet Wednesday, Rizzo said: “Parkland and Coral Springs please stay strong! This is out of control and and our country is in desperate need for change. I hope In this darkest of times back home this brings everyone together and we can find love. You’re all in my prayers”

Parkland and Coral Springs please stay strong! This is out of control and and our country is in desperate need for change. I hope In this darkest of times back home this brings everyone together and we can find love. You’re all in my prayers — Anthony Rizzo (@ARizzo44) February 14, 2018

A former student armed with an AR-15 semi-automatic rifle opened fire late in the school day Wednesday, killing at least 17 people. He was later taken into custody.

Rizzo remains a strong presence in his South Florida hometown about an hour north of Miami.

Our heart goes out to the students and families impacted by today’s tragedy at @ARizzo44's high school in Parkland, FL. — Chicago Cubs (@Cubs) February 15, 2018

In October, Rizzo won the 2017 Roberto Clemente Award, presented to the player whose character, community involvement, philanthropy and contributions both on and off the field embody the spirit of the late Pittsburgh Pirates Hall of Famer. Rizzo was chosen from a group of 30 players representing each major-league team.

Rizzo — a cancer survivor — was nominated for the award because of his involvement with cancer centers at the University of Miami Health System and the Joe DiMaggio Children’s Hospital in Hollywood, Fla., as well as with Gilda’s Club Chicago.

Several other major-leaguers, including former Cubs teammate David Ross, also sent messages via Twitter on Wednesday.

Heartbroken over the shooting at Stoneman Douglas HS. You are all in my thoughts and prayers. — David Ross (@D_Ross3) February 15, 2018

Prayers going out to everyone on the campus of Stoneman Douglas High School right now!!! — J.D. Martinez (@JDMartinez14) February 14, 2018

Prayers to those kids and families through this tough time. A sad day and prayers with those and hope for everyone’s safe. — Derek Holland (@Dutch_Oven45) February 14, 2018