It has been known for 30 years that the oxidized special pair radical cation P+ is as efficient as the neutral ground-state species P in quenching excitation from the neighboring accessory bacteriochlorophylls B-L and B-M, but the mechanism for this process has remained elusive. Indeed, simple treatments based on application of standard Forster theory to the most likely acceptor candidate fails by 5 orders of magnitude in the prediction of the energy transfer rates to P+. We present a qualitative description of the electronic energy transfer (EET) dynamics that involves mixing of the strongly allowed transitions in P+ with a manifold of exotic lower-energy transitions to facilitate EET on the observed time scale of 150 fs. This description is obtained using a three-step procedure. First, multireference configuration-interaction (MRCI) calculations are performed using the semiempirical INDO/S Hamiltonian to depict the excited states of P+. However, these calculations are qualitatively indicative but of insufficient quantitative accuracy to allow for a fully a priori simulation of the EET and so, second, the INDO results are used to establish a variety of scenarios, empirical parameters that are then fitted to describe a range of observed absorption and circular dichroism data. Third, EET according to these scenarios is predicted using a generalized Forster theory that uses donor and acceptor transition densities, which together account for the large size of the chromophores in relation to the interchromophore spacings. The spectroscopic transitions of P+ that facilitate the fast EET are thus unambiguously identified.