Eva returns in September 2015 and rekindles with Jason, however she becomes upset when Jason throws her out for feeling sorry for him. In 2016, Jason found out that his father Tony had died of a heart attack. Jason blamed Liz McDonald for Tony's death, which he said that if it was not for Liz, Tony would not have left and that Tony's death would have been prevented. In May 2016, after being rejected by Eva, he took Callum's friend Gemma Winter (Dolly-Rose Campbell) home with him. In the coming weeks, Callum's body is found buried under Gail Rodwell's granny annex. He is initially a suspect for Callum's murder, but is ruled out when they believe the lie that it was Tony who killed him. Gemma then tells him she knows it's not his fault but he should watch his back as his dad "did it" and people will take revenge on him. His van is soon torched and he believes it is retaliation from one of Callum's friends, but it is actually his mother's partner Pat Phelan (Connor McIntyre) who is pretending that it's them to scare him and take his business. Phelan tells him he should leave to which he agrees and lets him 'look after' the business, unknown that he is actually conning him; even though Todd has figured him out. Before going, he goes to say goodbye to Sarah in a mental hospital where she has been committed because of being paranoid over Callum (unbeknown to Jason, she witnessed his murder at the hands of her sister-in-law, Kylie) and being diagnosed with postpartum psychosis. He goes back home and says an emotional farewell to Todd, Eileen and Sean before going to Thailand.