Zoe claims to have information about Laura's murder in Tuesday's Fair City on RTÉ One and the RTÉ Player.
When Buckley meets Zoe, she says: "I just want to tell you that on the night that Laura was killed, I saw someone."
Fans can find out what happens next on Tuesday on RTÉ One and the RTÉ Player at 8:00pm.
Fair City airs on RTÉ One and the RTÉ Player on Sundays, Tuesdays, and Thursdays.
