Meanwhile, Alan comes out of his coma and tells Oliver that he is his grandfather and Oliver is adopted. Oliver then tries to track down Alan's children to find out which one is his real parent. Marcus Napier (James Lawson) denies being Oliver's father and tells Oliver that his sister, Rebecca is Oliver's mother. Oliver gets Rebecca's number and they arrange to meet, but she cancels at the last minute. However, when Rebecca hears that Oliver has been involved in an accident, she comes to visit him and things begin well until Rebecca announces that Paul is Oliver's father. Another DNA test is taken and proves that Paul is not Oliver's father. Oliver confronts Rebecca and when he sees Declan he reveals who he is. Oliver then asks Rebecca who his father is and she tells him that his real father had been a violent man who she split up with after Oliver's conception, but she later reunited with him and he raped her, resulting in Declan. Elle finds out Oliver's father's name is Richard Aaronow (Blair Venn) and Oliver goes to meet him after doubting Rebecca's story about the type of man he is. Shortly after the meeting with Richard, Carmella reveals to Oliver that she is pregnant with his child. Oliver is delighted, but Elle isn't so happy and their relationship ends. When Richard follows and confronts Rebecca at a picnic, she knocks him unconscious and he is taken to the hospital where they are informed that Richard is dying from kidney failure and only has weeks to live. Oliver decides to donate his kidney, so he can keep Richard alive long enough to give Rebecca justice in court. Oliver survives the transplant operation, but Richard's health deteriorats and he later dies.