The Fort was Fort Detroit, as well as another fort in Present day Ohio. They massacred the folks in the Ohio fort. At Detroit, someone got wind and forced most of the indians out of the fort before they could get ready to attack. Pontiac lay seige to the Fort for months, and managed to keep resupply and rescue parties away for a long time. The Fort survived only because the other chiefs lost faith in Pontiac's magic, packed up and went home. Pontiac made several attempts to storm the fort, but was repulsed. He managed to take control of trading posts/forts at Wisconsin, Upper Michigan, at St. Joseph, in western Michigan, and forts in Easter Indiana( Ft. Wayne) and in Ohio, along the shores of Lake Erie. He hit a snag at Fourt Dearborn( Chicago) when local Tribes refused to slaughter soldiers they considered friends, and finally sneaked out of the fort, but many soldiers and civilians were killed in the seige, and battle, and it is still referred to as the Ft. Dearborn Massacre. Pontiac came closer to doing what Tecumsah failed to do 30 years before in uniting the tribes to drive the British and later Americans out of the old Northwest territory( Ohio, Ind., Ill. Wisc. Michigan )
Blanket guns were smuggled into the Fort by Indian women, but the history indicates that another woman who worked in the fort for a family tipped off that family, who in turned tipped the Commander of the Fort. Blanket guns were also found among the dead at the killings at Ft. Robinson in Nebraska, in the 1880s, I believe. That is where Crazy Horse, the Sioux War Chief was killed by Indian Police.