Some eagle-eyed Emmerdale addicts believe they've cracked the case of mysterious newcomer Aidan Moore after a surprising twist involving John Sugden.

John got all nervous when his sister Victoria Sugden stumbled upon an old tin box containing army dog tags in her son Harry's whereabouts, tags that bore the name Aidan Moore. Clearly rattled, John snatched them away as quickly as he could, leaving viewers to spot Aidan's name inscribed on them.

Victoria was utterly gobsmacked to hear about John's hush-hush army days, but he shut down any conversations about it, leaving more questions than answers with a seriously shady look. The plot thickens for the audience, who didn't miss a beat, and conspiracy theories are flying, reports the Mirror.

Emmerdale fans think they've figured out who the mystery new character Aidan Moore really is
Emmerdale fans think they've figured out who the mystery new character Aidan Moore really is

If John has a military past, some viewers are betting Aidan was someone from those soldiering days. Chatter online has been rife with some thinking Aidan might have been John's secret squeeze gone wrong, while others are whispering about something much darker.

Could John have blood on his hands? Or maybe Aidan's story is what sent John marching away from the army life for good?

Fans are all in a tizz on social media, with one fan muscling in with a theory: "Wonder if he has siblings on his mum's side." Another pondered: "Hmm, ex lover who maybe died?".

A third fan speculated: "Ooh Aiden Moore, I wonder who that was. A previous fling of John's maybe." Another chimed in with a theory: "Who's that a boyfriend that died or he killed him?"

Oliver Farnworth as John Sugden in Emmerdale
Oliver Farnworth as John Sugden in Emmerdale

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This comes hot on the heels of John's quest for vengeance against Mackenzie Boyd and Aaron Dingle after his van, which doubled as his home, ended up submerged in a lake. Furious and homeless, John swore retribution.

The tension escalated in the latest episode as Mack faced off with John, while Cain Dingle encouraged Mack to bury the hatchet. Mack couldn't resist poking fun at John for his van-dwelling lifestyle, hinting that all his worldly goods were inside.

But viewers are left wondering, could there be more to John's story than meets the eye?