  Active Galactic Nuclei (AGN) may emit highly collimated and intense jets of
relativistic electrons which upscatter ambient photons. These electrons can
also scatter off the cold dark matter halo of the galaxy to produce high energy
photons which have a more isotropic signature than the upscattered photons from
QED processes. We propose to look for these high energy photons coming from AGN
as a method to detect dark matter. As a primary example we work out the
expected signal from electrons scattering off the lightest supersymmetric
partner into a photon plus selectron. Using the optimistic side of
astrophysical uncertainties, we still find the signal from M87 or Centaurus A,
two close-by AGN, smaller than the sensitivities expected of the currently
proposed photon detectors. However, long running photon detectors and future
detectors of higher sensitivity might be able to distinguish a signal from AGN
sources. In order to have confidence that new physics sources are discernible,
we also emphasize the importance of multi-wavelength studies of AGN with
varying jet axis orientation to the earth.
