Sam Garner

Sam Garner was a private detective in New York City who was paid by Julius Grayle sometime prior to 3 April 1938, to investigate Winter Quay, which was a building infested with Weeping Angels. Not realising this, he walked into a room at the Quay labelled "S. Garner". There he discovered a wallet containing his own investigator license card no. 9514, aged and yellowed. After confirming that the card was also still in his own wallet, comparatively pristine, Garner found a very elderly, bed-ridden, who claimed to be Garner's older self before taking his last breath. Garner ran out of the room and tried to escape, but found that Angels were barring the staircase landings. Instead, he ran up to the roof whereupon the Statue of Liberty sent him back in time. He was trapped in Winter Quay for the Angels for the rest of his life, for them to feed on his time energy. (TV:  The Angels Take Manhattan)

Decades later, once again in 1938, Garner saw his younger self come in, and died moments later. Garner's imprisonment in Winter Quay was presumably negated from the timeline when Rory Williams and Amy Pond created a paradox that removed Winter Quay from time. (TV:  The Angels Take Manhattan)

Garner is presumably the subject of Melody Malone: Private Detective in Old New York Town’s chapter 1, "The Dying Detective". (TV:  The Angels Take Manhattan)