The terror attacks on 9/11 left a gaping wound all over the country and an enormous community of people who lost loved ones. 

As we approach the 20th anniversary of that agonizing day, many families are dedicating their lives to healing and keeping the memory of those victims alive. 

Treasured memories can be found all over the Bay Ridge home of Tracy and Marty Gazzani. 

Childhood photos and high school portraits are among all they have of their son Terrence Gazzani. He died in the north tower of the World Trade Center on Sept. 11, 2001. 

"'I’ll call you tonight to let you know if I'll be home for dinner or if I will go play basketball with my friends,' -- 'I love you,' 'I love you too mom.' And that was the last time I saw him,” recalls Tracy Gazzani. 

The athletic and ambitious 24-year-old from Brooklyn was working at Cantor Fitzgerald. Two months after his death, his mother says she remembers going through his clothes and finding a note in his pocket that listed personal, professional and family goals. 

The Gazzani family says they have found solace in their son’s numerous old friends, but also among survivors and others who lost loved ones on that harrowing day and the painful years that followed.