Murphy, having been released on bail supplied by certain men in Jones’ confidence, jumped his bond and a great hue-and-cry was raised. As had been planned, it preceded Jim Murphy to Denton, where he rejoined Sam Bass, Sebe Barnes and Frank Jackson. But friends of Bass and Barnes had written warning that this looked to be a snare; that the bondsmen were probably creatures of General Jones. Confronted with these letters, for his very life Murphy played his part in masterly fashion—without, however, convincing Sam and Barnes. The white-faced, protesting traitor read murder in their hard eyes and restless gunhands.
Frank Jackson, barely twenty-two years old, had become with Arkansas Johnson’s death, Sam’s right-hand man. Now Frank took Murphy’s part, declaring his belief in the traitor’s good faith. But there were tense moments in the dusky elm-bottoms, with Sam and Sebe Barnes glaring murderously at the trembling Murphy, before Frank Jackson flung down his ultimatum: they must kill him before they killed Murphy.
It was decided to rob a bank and then strike out for Mexico. So, early in July, 1878, the four riders left Denton County forever, heading south. Just outside of Waco the four made camp and looked over the town. In a saloon frequented by cattlemen, so tradition has it, Sam Bass flung down a twenty-dollar gold-piece upon the bar, with a bitter sentence that sums up all the pros and cons of such a life as his, weighing all the tinsel glory against the myriad hardships of the outlaw’s lot.
“There goes the last U. P. goldpiece,” he grunted, watching moodily as it spun toward the bartender’s waiting hand. “An’ a lot o’ good they done me!”
Sam decided that a job in Waco would be too dangerous to attempt, hence the quartet mounted their horses again and jogged on south, steadily nearing the state capital at Austin, where Jones sat waiting for word from his tool.
To Jones came a hastily scrawled note postmarked Belton, saying that Sam Bass moved toward Round Rock in Williamson County, there to rob the bank. Then ensued action upon the quiet capital grounds!
There was a Ranger company stationed at San Saba, under the veteran thief-taker, Lieutenant N. O. Reynolds. One of the headquarters detachment killed a horse getting to Reynolds, while Jones himself, having dispatched R. C. Ware and two other Rangers to Round Rock, followed the next morning.
Upon coming into Round Rock, Jones warned local officials that the Bass Gang was coming. In the Texas of that day these words were enough to insure feverish activity in any town, small or large. On no account, Jones insisted, were the town officers to attempt an arrest before the arrival of Reynolds and his Rangers.
Friday, July 19, 1878. Reynolds’ Company E. Frontier Battalion, Texas Rangers, had made the one hundred fifty miles from San Saba to old Round Rock at top speed and in early afternoon pitched camp outside of town. Sam Bass, with Barnes, Jackson and Murphy, were also camped upon the town’s outskirts. The outlaws rode into town for a last check-up of the robbery’s details. Murphy, sensing the final scene so soon to be played, upon some pretext dropped behind. So Bass and Barnes and young Frank Jackson came up to Copprel’s store together. As they went inside they were noticed by the two local deputy sheriffs, Moore and Grimes.