https://www.lecronachelucane.it/2019/06/01/quarto-grado-omicidio-di-marco-vannini-criminologa-ursula-franco-davide-vannicola-ha-detto-che-fu-lui-a-pensare-che-potesse-essere-stato-federico-a-sparare-non-che-fu-izzo-a-dirglielo/