Molecular gas in the halo fuels the growth of a massive cluster galaxy at high redshift Tekijä Emonts, BHC, Lehnert, MD, Villar-Martin, M, Norris, RP, Ekers, RD, Van Moorsel, GA, Dannerbauer, H, Pentericci, L, Miley, GK, Allison, JR, Sadler, EM, Guillard, P, Carilli, CL, Mao, MY, Rottgering, HJA, De Breuck, C, Seymour, N, Gullberg, B, Ceverino, D, Jagannathan, P, Vernet, J, Indermuehle, BT