The character was left lifeless at the bottom of a ridge in the woods, after being shoved off a cliff-like area.
Caleb's fate remains unknown, and the ITV soap has yet to confirm who pushed him and why.
There are a number of suspects with a motive to want Caleb dead, following the reveal that he's been plotting against Kim Tate.
Faking his true identity and his link to the Tates for months, as well as throwing his own family under the bus to get revenge on Kim, he's made plenty of enemies.
But who pushed Caleb and why exactly do they want him out the way? Here's the key suspects for the crime and their motives...
Cain is the brother of Caleb, and they were reunited in December after Caleb tracked him and the Dingles down.
His long-lost brother, who he hadn't seen since he was a teenager, lied to him about his reasons for heading to the village and his paternity.
Cain and Caleb managed to build a sibling relationship after some tense weeks, so to have been kept in the dark has not gone down well for Cain.
But the biggest motive for Cain attacking his brother will be the fact he threw him and his wife Moira under the bus by sabotaging their farm business, in order to get them to sell their land to Kim.
Their bad business reputation and near financial ruin as a result of Caleb's actions will no doubt give Cain all the reasons he needs to launch an attack.
Will has been suspicious of his partner Kim's new business partner for months, and he has been proven right.
Kim ignored his concerns and told him to trust Caleb, something he never truly did.
Will helped Kim to see what was going on and managed to stop him before it went too far - and now he may want revenge.
The character has often taken revenge on residents who target his family, and Caleb could be no different.
Will's partner Kim possibly has the biggest motive, and is the most likely to take revenge it can be said.
It wouldn't be the first time Kim has stood back and watched someone die, with Kim refusing to help her ex Frank Tate when he suffered a heart attack in 1997.
She leaned over him and even did her makeup as he lay dying, while she's also attacked other residents in the past - so is Caleb next on her list?
After all, he did try to destroy her and take everything from her so will Kim take the ultimate revenge?
Mack is left furious with Caleb, someone he's never seen eye to eye with, after a discovery.
Despite his split from wife Charity Dingle after he cheated and got another woman pregnant, Mack is furious to learn that Charity has slept with Caleb.
He wastes no time in lashing out at Caleb, and is later left even more furious when he shares some harsh words - but will Mack end up doing something he may regret?
Mack had attempted to apologise to Caleb for their earlier row, but as Caleb once again taunted him he was quick to tell him he would soon get what's coming to him.
Caleb's lover Leyla was left devastated to find out he'd lied to her all this time, and his actions could lead to a drug relapse for the addict.
The bigger heartache came when she found out he'd slept with someone else, Charity.
The character is fighting temptation and fears she will relapse, with David telling her they will watch him get his comeuppance - but does this hint Leyla is guilty?
Caleb forced his son Nicky to go along with his plan, and forge a fake romance with Gabby Thomas in the hope of marrying her.
This would allow them access to her son Thomas Tate's inheritance, but Nicky didn't want to go through with it.
Nicky told his dad, and later Gabby, that he was gay but not even this made Caleb permit his son to flee their plan.
Instead, Caleb attacked Nicky twice before trying to set him up for fleecing Kim.
Ally will no doubt be furious with Caleb for what he did and for involving his lover Nicky - might he take revenge?
David Metcalfe is furious for Leyla, but could his hatred for Caleb lead to him accidentally attacking him?
There's also Chas Dingle, Caleb's sister, and then Moira - both of which will be furious with Caleb for his betrayal. It wouldn't be the first time Moira has killed someone!
Emmerdale airs weeknights at 7:30pm on ITV1 and ITVX, with an hour-long episode on Thursdays.