Many young soap fans might be surprised to learn that Silas is neither the first Hollyoaks serial murderer, nor the most brutal. Toby Mills jealously killed a total of 12 women due to their resemblance to ex-girlfriend Ellie Hunter.
He also has strong competition in the serial killer stakes from Coronation Street's Richard Hillman, whose spree was triggered after leaving his business partner Duggie Ferguson for dead in February 2002.
Hillman would later go on to kill his ex-wife with a spade and Maxine Peacock with a crowbar, although he failed to hit off his other targets Emily Bishop and Audrey Roberts - forcing him to take desperate action as the net closed in in the soap's most famous scenes, driving his family's Ford Galaxy into the canal with the Platts inside.
Home and Away's Zoe McAllister, the most famous female killer, went on a killing spree in 2005. And who can forget The Bill's Sun Hill sniper Gabriel Kent, perhaps the most deranged character from any soap past and present?
More recently, EastEnders has housed two-faced preacher Lucas Johnson, while Coronation Street's hapless John Stape seemed to be possessed by alien forces when he accidentally killed Joy Fishwick and Charlotte Hoyle.