Anthony Rizzo tweets condolences, alarm over shooting at alma mater

— -- Chicago Cubs first baseman Anthony Rizzo, an alumnus of the South Florida high school where officials said at least 17 people have died in a shooting attack, sent his condolences and encouragement Wednesday on Twitter while sounding a note of alarm.

Rizzo, who in November donated $150,000 to his alma mater, Marjory Stoneman Douglas High School, for the installation of lights for baseball and softball fields, said he hoped the people of Parkland, Florida, would come together in "this darkest of times."

Rizzo, 28, was selected out of Stoneman Douglas by the? Boston Red Sox?in the sixth round of the 2007 draft.

Miami Heat?guard? Dwyane Wade and head coach Erik Spoelstra also discussed the shooting, prior to facing the host? Philadelphia 76ers?on Wednesday night.

"It's very unfortunate; all the families dealing with the unknown of what's going on with their kids, our prayers go out to them," Wade said. "The families that have been affected by this incident, our prayers go out to them, it's so unfortunate."

"It's horrifying," Spoelstra added, "as we're finding more information about it, I just want them to know we're thinking about them. It makes this game feel totally insignificant. And it's just mind-boggling."

The? University of Florida?held a moment of silence Wednesday night prior to the Gators' home basketball game in Gainesville against the? Georgia Bulldogs.

The Broward County sheriff said a 19-year-old suspect identified as Nikolas Cruz was in custody and investigators were starting to investigate the attack at the school.?

The suspect, a former student, was previously expelled for disciplinary reasons, Sheriff Scott Israel said.

Most of the fatalities were inside the building, though some were found fatally shot outside.

Information from The Associated Press was used in this report.