The people on the list gave themselves up and later they were killed, the survivors said.
Those killed were parents to at least 11 young children, the survivors said.
At least one survivor said she never felt in danger.
In the aftermath, many survivors say they are never the same.
Many survivors and families have also said the theory was weak.
But by afternoon, the survivors said, more government troops had arrived.
The island has changed in 50 years, all the survivors said after their first glance around.
Already, nearly 1,000 civilians have been killed, international human rights organizations and survivors say.
Bars, which survivors said was particularly active, is thought to have at least 300 members.
"It is fresh in my mind," said one survivor from the 84th floor, who asked that his name not be published.