æt fˈɜːst, mˈæθjuːz dᵻsˈaɪdᵻd tə hˈɛlp ðɪ ˌɛfbˌiːˈaɪ ænd ɡˈeɪv ðˌɛm ɐ kənfˈɛʃən, bˌʌt ʃˈɔːɹtli ðɛɹˈæftɚ dᵻsˈaɪdᵻd ɐɡˈɛnst koʊˈɑːpɚɹˌeɪɾɪŋ.
At first, Matthews decided to help the FBI and gave them a confession, but shortly thereafter decided against cooperating.