<P> Later, Abe and Lexie adopt baby Isaac, thinking he is the child of DiMera henchman Wilhelm Rolf . Isaac is actually the son of Bo Brady and Hope Brady who was switched at birth by Stefano . Abe is later appalled to learn that Lexie knew of the switch, but hides the truth from him . Abe files for divorce but after Lexie helps Hope, Brady and her son Zack, Lexie and Abe reconcile . </P> <P> Shortly after, Brandon Walker comes to Salem with a deep hatred of Abe . Lexie sleeps with Brandon in a weak moment and becomes pregnant, unsure if Abe or Brandon is the father . Its revealed Abe is the father and Lexie and Abe reconcile for good . Brandon's presence causes issues for Abe until it is revealed that Brandon is Abe's illlegitimate son with Fay Walker . After some time, Abe and Brandon embrace each other as family, and have since had a good relationship . </P> <P> Abe is shot dead on the day of Theo's christening . He is the first victim of the 2003 Salem serial killer . Months later he turns up on a remote tropical island, (melaswen / newsalem) which is a complete replica of Salem . Although his "ghost" started appearing to Celeste and Lexie while he was supposedly dead, (this was not explained). He works together with Roman and the others and got off the island . Abe is reunited with Lexie and Theo but goes blind and learns he is impotent . His anger shines through and he becomes paranoid that Lexie is cheating . Eventually Abe's eyesight is restored but an anonymous note leads him to a motel where he finds Lexie having sex with his protege Salem Police officer Tek Kramer . Their marriage is in turmoil for a while until Abe uses Lexie in the investigation of her half - brother EJ DiMera, then Abe falls back in love with her . They stay together until Lexie disappeared on December 29, 2006 . </P> <P> His eyesight starts deteriorate again and he recently undergoes a second retina transplant . At the same time, Lexie is found in the tunnels under Doug's Place and the DiMera mansion, where Andre DiMera has kept her all these months against her will . The transplant successful, Abe has return to work as the Commissioner of the Salem Police Department . In fall of 2010 Abe returned full - time to the screen . He began investigating the murders of the people of Salem, because he didn't want anyone going through what he already had . However the tables may turn on him when Stefano decided that he was going to frame Abe for the murders . In June 2012, Lexie, who had cancer, died peacefully in Abe's arms . </P>

Who shot abe carver on days of our lives