  Population III stars were the first generation of stars, formed in minihalos
of roughly primordial element abundances, and therefore metal-free. They are
thought to have formed at the cores of dense dark matter clouds. Interactions
between baryons and dark matter can therefore have had an important impact on
their evolution. In this paper we consider the capture of non- or
weakly-annihilating dark matter by these early massive stars. In a wide region
of parameter space, interactions of dark matter with baryons lead to premature
death of the star as a black hole. We sketch how this modification of the
standard evolutionary history of Population III stars might impact the epoch of
reionisation, by modifying the amount of UV emission, the transition to
Population II star formation, and the X-ray and radio emission from accretion
onto the black hole remnants. Signals of massive black holes originating from
Population III stars could be observed through gravitational waves from their
mergers. Finally, the observation of pair-instability supernovae could
effectively preclude premature black hole death across a wide range of
parameter space, ranging in mass from $m_{DM} \sim 0.1\text{ GeV}$ to $m_{DM}
\sim m_{\rm Pl}$.
