He brought a message inquiring on what terms the troops would consent to evacuate Nimes.

The general sent back word that the conditions were, that the troops should be allowed to march out fully armed and with all their baggage; the five guns alone would be left behind.

When the forces reached a certain valley outside the city they would halt, that the men might be supplied with means sufficient to enable them either to rejoin the regiments to which they belonged, or to return to their own homes.
At two o'clock A.M.the same envoy returned, and announced to the general that the conditions had been accepted with one alteration, which was that the troops, before marching out, should lay down their arms.
The messenger also intimated that if the offer he had brought were not quickly accepted--say within two hours--the time for capitulation would have gone by, and that he would not be answerable for what the people might then do in their fury.

The general accepted the conditions as amended, and the envoy disappeared.
When the troops heard of the agreement, that they should be disarmed before being allowed to leave the town, their first impulse was to refuse to lay down their weapons before a rabble which had run away from a few musket shots; but the general succeeded in soothing their sense of humiliation and winning their consent by representing to them that there could be nothing dishonourable in an action which prevented the children of a common fatherland from shedding each other's blood.
The gendarmerie, according to one article of the treaty, were to close in at, the rear of the evacuating column; and thus hinder the populace from molesting the troops of which it was composed.

This was the only concession obtained in return for the abandoned arms, and the farce in question was already drawn up in field order, apparently waiting to escort the troops out of the city.
At four o'clock P.M.the troops got ready, each company stacking its arms in the courtyard before: marching out; but hardly had forty or fifty men passed the gates than fire was opened on them at such close range that half of them were killed or disabled at the first volley.
Upon this, those who were still within the walls closed the courtyard gates, thus cutting off all chance of retreat from their comrades.