Celtics point guard Isaiah Thomas, Jim Connolly, former Concord High School principal Gene Connolly (Jim’s father), Derek Thomson, Cleveland Cavaliers point guard Kyrie Irving and Dylan Thomson attend a ceremony before the start of the Celtics game at TD Garden in Boston on Wednesday night. The Thomson brothers were the night’s Heroes Among Us honorees, thanks to their 4,500-mile bike ride across the country last summer in which they raised $30,000 for ALS research. Gene Connolly, formerly the principal of the Thomson brothers, was diagnosed with ALS in 2014.