Buffalo was ordered to proceed to the TA ranch at once and take the WSGA expedition into custody. The 6th Cavalry left Fort McKinney a few hours later at 2 am on April 13 and reached the TA ranch at 6:45 a.m. as the settlers were about to use the Ark of Safety. Colonel J.J. Van Horn, the officer in charge of the unit, negotiated with Sheriff Angus to lift the siege, and in return the Invaders were to be handed to civilian authorities. The Sixth Cavalry took possession of Wolcott and 45 other men with 45 rifles, 41 revolvers and some 5,000 rounds of ammunition, before escorting them first to Fort McKinney and then to Cheyenne. The text of Barber's telegram to the President was printed on the front page of The New York Times on April 14, and a first-hand account of the siege at the T.A. appeared in The Times and the Chicago Herald and other papers. Arrest and legal action The WSGA group was taken to Cheyenne to be held at the barracks of Fort D.A. Russell since the Laramie County Jail was unable to hold that many prisoners. They received preferential treatment and were allowed to roam the base by day as long as they agreed to return to the jail to sleep at night. Johnson County officials were upset that the group was not kept locally at Ft. McKinney. The general in charge of the 6th Cavalry felt that tensions were too high for the prisoners to remain in the area. Hundreds of armed locals sympathetic to both sides of the conflict were said to have gone to Ft. McKinney over the next few days under the mistaken impression the Invaders were being held there. The Johnson County attorney began to gather evidence for the case and the details of the WSGA's plan emerged. Canton's gripsack was found to contain a list of seventy alleged rustlers who were to be shot or hanged, a list of ranch houses the Invaders had burned, and a contract to pay each Texan five dollars a day plus a bonus of $50 for each person killed. The Invader’s plans reportedly included eventually murdering people as far away as Casper and Douglas. The Times reported on April 23 that "the evidence is said to implicate more than twenty prominent stockmen of Cheyenne whose names have not been mentioned heretofore,