“Nachman” means comforter. Perhaps we derive some comfort from the fact that a rabbi with parents of the same name died just before the baby died? Even though it is very sad, at the same time perhaps it is a hint that the deaths were for the good and all part of the divine plan.
There are so many striking “coincidences.” Did you know that Gabriel Sanders, the boy killed by a terrorist in Toulouse, France, was named after Gavriel Herzberg, the Chabad shliach murdered by terrorists in Mumbia? And his parents weren’t even Chabad.
Also, on the anniversity of the Mumbai attacks, a pregnant Chabad shlucha from India (visiting Israel to give birth) was killed by a rocket from Gaza. Who knows what the meaning is — perhaps it has to do with the principle that the death of a tzaddik atones for the generation. (Moed Katan 28a).
Have you ever noticed that Avraham was born in 1948 in the Hebrew Calendar, the same year (in the Western) calendar in which the state of Israel was founded? Of course, Hashem promised Avraham that all of the land of Canaan would be his descendents’ everlasting possession. (Bereshis 17:8.)