TUCSON, Ariz. —  Blood spatter on Nancy Guthrie’s front porch  shows she was still alive when coerced out of her home by a lone abductor in the Catalina Foothills of Tucson, according to a retired FBI profiler — who also believes that the masked suspect made enough mistakes that he will be identified eventually. “We also know at least that she was alive at that time,” said Jim Clemente, who spent 22 years in the bureau. That’s based on his analysis of blood on her front porch. There was a concentration of round droplets near the front door, then a thinning trail toward her driveway. “She must have aspirated and then coughed up blood with her face very close to the ground, and I don’t believe that would have happened had two people been carrying her at that point,” he told Fox News Digital. Guthrie, the 84-year-old mother of “Today” co-host Savannah Guthrie, is believed to have been kidnapped from her home around 2:30 a.m. on Feb. 1.…