Jennifer Lopez revealed that she was grieving following the sudden death of her former co-star and friend Ray Liotta.MORE: Jennifer Lopez in tears in trailer for intimate Netflix documentary HalftimeALSO: HELLO! launches Jubilee T-shirt collection to celebrate Queen Elizabeth in styleThe actress took to social media to pay tribute to her Shades of Blue co-star, also including several photos and clips of theirs.VIDEO: Goodfellas starring Ray Liotta"Ray was my partner in crime on Shades of Blue… the first thing that comes to mind is he was so kind to my children," she emotionally wrote."Ray was the epitome of a tough guy who was all mushy on the inside… I guess that's what made him such a compelling actor to watch. The original Goodfella. MORE: Jennifer Lopez flashes first engagement ring from Ben Affleck in resurfaced video"We shared some intense moments on set those three years! When I first heard he took the job on Shades of Blue, I was thrilled, and the first time we walked on set to do our first scene together there was an electric spark and a mutual respect and we both knew this was going to be good."Jennifer paid an emotional tribute to Ray upon learning of his passingJennifer continued: "We enjoyed doing our scenes together and I felt lucky to have him there to work with and learn from.