Radio tomography is a method for imaging a small scene by measuring the attenuation by objects of all links in a dense wireless sensor network. Multipath reduces the amount of attenuation a user induces on the links, corrupting the image. This paper introduces a beamforming method that does not induce latency in the image frame rate yet allows beamforming using transmit and receive weights on every link. Simulations demonstrate that the beamformer can successfully mitigate multipath, restoring the image to a nearly multipath-free quality.