White roses were placed yesterday at the World Trade Center Memorial near the names of victims who were killed exactly 20 years ago by a massive terrorist bomb planted in the parking garage.

“Today, we stop and remember the six innocent people killed in the World Trade Center attack two decades ago,” 9/11 Memorial President Joe Daniels said. “Like those lost in the 2001 attacks, the memory of each victim will be forever preserved at the Memorial and Museum for future generations.”

The blast killed Stephen Knapp, 48 John DiGiovanni, 45, Robert W. Kirkpatrick, 61, William Macko, 57, Wilfredo Mercado, 37, Monica Rodriguez Smith, 34 and her unborn child.