The firing squad began shooting as soon as the two were in position against a wall. The execution happened too quickly for the television crew assigned to the trial and death sentence to videotape it in full; only the last round of shots was filmed.
One would have thought that after taking a few dozen of the 120 rounds fired they would have already fallen by the time the crew started filming.
I actually watched (no Youtube yet then) the a captain self exiled for his safety who was assigned ready to shoot if loyalists would come swarm them to their rescue, he wasn’t one of the shooter, he said shooting came too sporadic, probably before anyone change their mind, brat-tat-tat-tat-tat-tat...