On April 14, 1865, hours before he was assassinated, Lincoln signed legislation establishing the United States Secret Service, and, at 10:15 in the evening, Booth entered the back of Lincoln's theater box, crept up from behind, and fired at the back of Lincoln's head, mortally wounding him.
ˌɔn ˈeɪpɹəl fˈoːɹtiːn, wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɪksti fˈaɪv, ˈaʊɚz bᵻfˌoːɹ hiː wʌz ɐsˈæsᵻnˌeɪɾᵻd, lˈɪŋkən sˈaɪnd lˌɛdʒɪslˈeɪʃən ɪstˈæblɪʃɪŋ ðə juːnˈaɪɾᵻd stˈeɪts sˈiːkɹᵻt sˈɜːvɪs, ænd, æt tˈɛn:fˈɪftiːn ɪnðɪ ˈiːvnɪŋ, bˈuːθ ˈɛntɚd ðə bˈæk ʌv lˈɪŋkənz θˈiəɾɚ bˈɑːks, kɹˈɛpt ˌʌp fɹʌm bᵻhˈaɪnd, ænd fˈaɪɚd æt ðə bˈæk ʌv lˈɪŋkənz hˈɛd, mˈɔːɹɾəli wˈuːndɪŋ hˌɪm.