Left panel: baseline-subtracted spectrum of COSMOS-FRI 70 obtained with the IRAM-30 m. The solid curve shows the Gaussian fit to the CO(7→6) emission line. In the y-axis we show T_mb in units of millikelvin. Right panel: RGB image centered at the coordinates of COSMOS-FRI 70 and obtained using Spitzer 3.6 μm (Sanders et al. 2007), Subaru r-, and Subaru B-band images (Taniguchi et al. 2007) for the R, G, and B channels, respectively. The two squares denote the locations of COSMOS-FRI 70 and its northern companion with from the Laigle et al. (2016) catalog. The white circle shows the IRAM-30 m beam. North is up.