In the late summer of 2013, the discovery of a man's body hidden in a Phoenix alley marked the beginning of a years-long investigation into the death of Robin Carle. The male victim's remains were found on August 5, 2013, concealed beneath an overturned couch near 19th Avenue and Cactus Road. Investigators determined that Carle had been stabbed to death, and due to the state of his decomposing body and the absence of blood at the scene, they believed he had been killed at a different location sometime between August 3 and August 5.
Crucial evidence was collected from the scene, including the DNA of a woman found under Carle's fingernails and on a bloody knife discovered in a nearby dumpster that had recently been emptied. Despite this forensic evidence, the case went cold for nearly five years, leaving the circumstances of Robin Carle's death a mystery.
A significant breakthrough came in March 2018 when a 28-year-old woman named Makayla Lamb was arrested. Lamb had been taken into custody on an unrelated charge, and her DNA was subsequently matched to the profile that had been recovered from the evidence in the Carle case. Following this match, Makayla Lamb was charged on March 26 with second-degree murder and concealing a body. When questioned, she denied knowing Robin Carle and could not explain how her DNA was found under his fingernails. Court documents revealed that Lamb had previous convictions for trespassing, theft, and drug charges.