John D’Alonzo, the mental health manager from Glenolden who tackled the gunman that killed his caseworker and wounded a psychiatrist, is one of 24 people being honored with Carnegie medals for heroism.

The 42-year-old D’Alonzo helped rescue Dr. Lee Silverman after the psychiatrist was wounded by Richard Plotts, 50.

Plotts is serving life in prison after pleading guilty but mentally ill to killing Theresa Hunt, 53, before also shooting Silverman at the Mercy Fitzgerald Hospital campus in Yeadon on July 24, 2014. Silverman was able to grab his own gun and wound Plotts, whom D’Alonzo tackled and helped disarm as Plotts chased Silverman out of his office, the Carnegie Hero Fund Commission said.

The medals are named for Pittsburgh steel magnate and philanthropist Andrew Carnegie, who was inspired by stories of heroism during a coal mine disaster that killed 181 people.

The commission’s latest honorees include six others who rescued or attempted to rescue people during four other shootings and three who died during rescue attempts.

Glenda Clement Beech, 61, of Borger, Texas, died trying to rescue two granddaughters and her brother from a house fire On Dec. 3, 2014. All four died from smoke inhalation. Glenn L. Graham, 56, of Detroit, died trying unsuccessfully to rescue his grand-niece from a house fire on April 26, 2015. Christopher Mark Rickman, 45, of Brooklyn Park, Md., died trying to rescue two neighbors whose house caught fire on Feb. 10, 2015.

Click here to read the entire list of honorees.