Resonant inelastic x-ray scattering (RIXS) is a technique for measuring the electronic excitation spectra. As the field is maturing, increasingly lower energies are becoming accessible for measurement. Recently, a 500 meV peak was observed in the zone-boundary RIXS spectrum of an undoped La2CuO4 crystal, measured at the copper K-edge. This peak was suspected to be a 2-magnon excitation, but to make sure, we took several measurements – at different momenta, dopings, and temperatures. In addition to verifying the peak assignment, interesting scaling behavior in the temperature dependence was observed, and the physics of the 2-magnon at finite momentum is discussed.