For several decades, observational studies of supernova explosions have focused almost exclusively on the optical emission that dominates their bolometric luminosity. Yet many of the leading breakthroughs in our understanding of supernovae have been enabled by observations at other wavelengths. I will present new results on the nature of the progenitors, evolutionary histories, and explosion properties based on nontraditional supernova studies. The unique combination of sensitive radio/mm-band arrays (EVLA, CARMA, ALMA), new wide-field optical surveys (PTF, Pan-STARRS, CSS, LSST), and gravitational wave facilities (aLIGO) mark this decade as opportune for the study of Supernova Forensics.