ðə pəlˈiːs ænd ˈɔːl ˈʌðɚɹ aʊtsˈaɪdɚz wɜː fˈaɪnəli kənvˈɪnst ðæt nˈoʊ ˈʌðɚ kˈɪlɚɹ ɛɡzˈɪstᵻd ænd ðæt mˈætθɛiz kwˈɛst hɐdbɪn bˈoːɹn sˈoʊlli ʌv hɪz ˈoʊn mˈædnəs.
The police and all other outsiders were finally convinced that no other killer existed and that Matthäi's quest had been borne solely of his own madness.