On day four, as the operation wound down, President Uhuru Kenyatta said five terrorists were killed and 11 suspects were in custody.
But since then, the numbers have fluctuated, with different officials citing various numbers between four and six.
This month, military spokesman Maj. Emmanuel Chirchir said four gunmen died when part of the mall collapsed. It's unclear whether he was referring to those in the video. Their charred bodies, he said, are undergoing DNA tests.
Chirchir also released the names of the dead militants, including an American of Somali origin, but analysts say those names may be pseudonyms.
Officials have said the answers may be buried beneath the rubble of the collapsed section of the mall.
But, as they scour through the mangled heap, there are more questions than answers.