Translation:The brothers and sisters will read the victims' names.
It could be victim's or victims' depending on whether there is more than one victim or not, but if no apostrophe is provided, there needs to be one or two additional "the"s and an "of" so that the sentence can be reworded. "The brothers and the sisters will read the names of the victims." and "The brothers and sisters will read the names of the victims." would also be correct and not require an apostrophe s.
This error has been going on for so long. When are you (DL) going to get your act together and fix it in this section and all the others with missing sections e.g. in Adverbs 2 and in Abs. Ob. 2? Do you even bother to monitor these comments? It doesn't appear so, otherwise this problem would have been sorted out by now.