ɡɹˈoʊdən hɐz stˈeɪɾᵻd ðæt hɪz nˈɛkst bˈʊk, dʒˌeɪˌɛfkˈeɪ: ˈæbsəlˌuːt pɹˈuːf, dˈɑːkjuːmənts hɪz ˈɪntɚvjˌuː wɪð ɐ dˈiːli plˈɑːzə wˈɪtnəs hˌuː wʌz stˈændɪŋ wɪð lˈiː hˈɑːɹvi ˈɑːswəld ɔnðə sˈɛkənd flˈoːɹ ʌvðə tˈɛksəs skˈuːl bˈʊk dᵻpˈɑːzɪtˌoːɹi wɛn ðeɪ bˈoʊθ hˈɜːd ʃˈɑːts bˌiːɪŋ fˈaɪɚd aʊtsˈaɪd.
Groden has stated that his next book, JFK: Absolute Proof, documents his interview with a Dealey Plaza witness who was standing with Lee Harvey Oswald on the second floor of the Texas School Book Depository when they both heard shots being fired outside.