  We interpret the 750-760 GeV diphoton resonance as one or more of the
spinless components of a singlet superfield arising from the three
27-dimensional representations of $E_6$ in F-theory, which also contain three
copies of colour-triplet charge $\mp 1/3$ vector-like fermions $D_i,\bar{D}_i$
and inert Higgs doublets to which the singlets may couple. For definiteness we
consider (without change) a model that was proposed some time ago which
contains such states, as well as bulk exotics, leading to gauge coupling
unification. The smoking gun prediction of the model is the existence of other
similar spinless resonances, possibly close in mass to 750-760 GeV, decaying
into diphotons, as well as the three families of vector-like fermions
$D_i,\bar{D}_i$.
