A devastating watch.

Viewers were left in a very emotional state after last night's "powerful" Keelin Shanley documentary. Leaving many heartbroken, Keelin Shanley: Faraway, Still Close took a look back on the life of the presenter who sadly passed away last year. Passing away after a battle with cancer in February of 202 at only 51, viewers couldn't believe her struggle. With her husband Conor Ferguson co-directing the film, it showed footage of some emotional moments in the days before Keelin died. Suffering from breast cancer since 2011 when she was diagnosed in St. Vincent's Hospital in February of that year. Viewers of the heartbreaking documentary praised Keelin's bravery and the hardship of her struggle. One user tweeted: "Heartbreakingly sad but oh my word, what a formidable woman she was." Miriam O'Callaghan said: "I always knew Keelin was an incredible person, in every possible way, had the privilege of working with her for decades, but humbled&in awe watching her in Keelin Shanley: Faraway, Still Close-courage beyond belief." https://twitter.com/Antcon7062/status/1457824878518841348 https://twitter.com/LeoVaradkar/status/1457838477647745024 https://twitter.com/MiriamOCal/status/1457839103739826176 Tánaiste Leo Varadkar added: "A beautiful and devastating tribute to the late Keelin Shanley. She was such a warm, fun, intelligent person. An incredible loss." Another viewer wrote: "RIP Keelin. Brave to the very end. An incredible documentary about an incredible lady. Still in our thoughts." Ingrid Miley said: "Completely overwhelmed by the beautiful documentary about my wonderful former RTÉ colleague #KeelinShanley - so poignant and beautifully made. My thoughts and love are with her family." https://twitter.com/deesheedy/status/1457837046790332421 https://twitter.com/DeirdreOKane1/status/1457844199265652741 https://twitter.com/ingridmileyRTE/status/1457829423743442947 Another viewer said: "Keelin Shanley was one of the best, most interesting, and definitely most underrated broadcasters we've had. This is hard to watch." With another writing: "Keelin Shanley was an absolute warrior. Never, ever again will I complain about getting older." Keelin went through chemotherapy and a mastectomy after receiving the life-changing news, revealing her diagnosis on the Late Late Show in 2013.