Among the most jarring details are these: The Israeli Olympic team members were beaten and, in at least one case, castrated.

“What they did is that they cut off his genitals through his underwear and abused him,” Ms. Romano said of her husband, Yossef. Her voice rose.

“Can you imagine the nine others sitting around tied up?” she continued, speaking in Hebrew through a translator. “They watched this.”

Ms. Romano and Ms. Spitzer, whose husband, Andre, was a fencing coach at the Munich Games and died in the attack, first described the extent of the cruelty during an interview for the coming film “Munich 1972 & Beyond,” a documentary that chronicles the long fight by victims of the families to gain public and official acknowledgment for their loved ones. The film is expected to be released early next year.