answers: Season 4
context: hospital with eclampsia and has an emergency c-section. Lucas is given a half-sister, who is named Lily Roe Scott when Karen regains consciousness. Later, Dan turns himself in for Keith's murder. Lucas graduates and gets, as a reward, his book (An Unkindness of Ravens) from his mother. That same day, he becomes an uncle with the birth of Nathan and Haley's son, James Lucas Scott, partly named after him. Lucas is named the godfather of James and announces that he will be assisting Whitey as Nathan's college basketball coach. One year from Season 4, Lucas becomes the head coach of </s> feelings for Chuck, as well as Serena's attempts to sabotage their relationship. In the finale, Dan, having been left by Blair for Chuck, teams up with Georgina in order to write his follow up to "Inside". This time, however, he pledges to write the novel "he should have written from the beginning." Georgina, with her own score to settle with the Upper East side, is more than happy to help. In Season 6, Dan tells Serena that the reason he didn't give her an answer to the "I love you" was because it was easier to focus on his anger </s> Beta, the leader of the Whisperers, disembowls him, and he is then devoured by walkers. "" Gabriel first appears in the season 5 episode "Strangers". He is heard screaming for help, and when Rick's group arrives, they find him trapped on top of a boulder with three walkers surrounding him. They quickly kill the walkers and Gabriel comes down, thanking them after vomiting. After being searched and answering Rick's questions, he tells them that he has a church nearby, and he leads them back to it. He insists that he is alone, and has been ever since the outbreak started,
question: when does lucas find out dan killed keith