NEWTOWN, Conn. (AP) – Parents of children slain in the Connecticut school massacre held photos of their sons and daughters, cried, hugged and spoke in quavering voices as they called for a national dialogue to help prevent similar tragedies.

“I do not want to be someone sharing my experience and consoling another parent next time. I do not want there to be a next time,” said Nicole Hockley, whose son Dylan was among the 20 first-graders and six adults killed by a gunman a month ago at Sandy Hook Elementary School.

Members of the newly formed group Sandy Hook Promise spoke out as politicians from Maine to New Mexico marked the one month that has passed since the shooting with renewed demands for tighter gun control.