In the year 1848 he married a respectable girl, but neither her affection nor the infant daughter born to him a year later could prevail with him to abandon his vicious and profligate habits. His wife sought security from his ill-treatment in divorce, which was readily granted. This freed him from family responsibilities, and he at once determined to emigrate either to Texas or California. Littlebury Shoot, a neighbor, while Helm was intoxicated, had, for pacific purposes, promised to accompany him,—intending when he was sober to avoid the fulfilment of the promise by explanation. Helm was told of his intention. He called upon Shoot, who had retired, and meeting him at the door of his house, with his left hand on his shoulder, in a friendly tone thus addressed him: “So, Littlebury, you’ve backed down on the Texas question, have you?” Shoot attempted an explanation, but was stopped by the peremptory demand: “Well, are you going or not? Say yes or no.” “No!” At the utterance of this reply, Helm buried his bowie-knife in the breast of the unfortunate man, who, without a struggle, fell dead at his feet. Mounting his horse immediately, Helm rode away. The brother of the victim and a few resolute friends followed in pursuit. They tracked him through several neighborhoods and captured him by surprise at an Indian reservation, and returned him to Monroe County for trial. He was convicted of murder; but his conduct was such while in confinement as to raise serious doubts of his sanity. After his conviction, under the advice of physicians he was consigned to the lunatic asylum, his conduct meantime being that of a quiet, inoffensive lunatic. His keeper, finding him harmless, indulged him so far as to accompany him on daily walks into the country surrounding the institution. On one occasion, on some urgent pretence, Helm asked permission to enter a willow copse, which was readily granted. Afterwards the desire to enter this copse whenever he approached it seemed to take the form of mania. Suspecting no ulterior design, his keeper indulged him. One day, meeting a friend near the spot, the keeper, during Helm’s absence, engaged in conversation. Time passed unnoticed at first, but as the stay of Helm was prolonged, the keeper, fearing some accident had befallen him, made a rapid search through the thicket. But the bird had flown. His stratagem was successful. He was never afterward seen in Missouri, but upon his escape he fled immediately to California. Several persons were killed by him while there, in personal _rencontre_. At length he committed actual premeditated murder, but escaped arrest by flight. In the Spring of 1858 he arrived at Dalles, Oregon. Fearful of a requisition for his return to California, Helm, in company with Dr. Wm. H. Groves, Elijah Burton, Wm. Fletcher, John Martin, —— Field, and —— McGranigan, attempted a journey on horseback to Camp Floyd, Utah, sixty miles southwest of Salt Lake City, by way of Fort Hall.