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When investigators questioned Howard later--after noticing a "star" shaped mark on her skull--the medical examiner stated that it was impossible to tell whether the injury occurred before, or after, Stephanie died.
Luna also criticized Mack's general handling of the investigation.
"I feel that the Graham County Sheriff's Office should have conducted a more thorough interrogation of Andreas Goodrum and thoroughly investigated his relationship with Stephanie Proffitt."
"Also, the sheriff's office should have made a more serious effort to prepare more accurate and complete reports concerning interviews and other investigative activities," Luna stated.
In other words, Luna concluded, Mack's department botched the investigation of Stephanie Proffitt's death so badly that there really is insufficient evidence on which another agency might proceed.
"Luna, in a kind of a hidden way, has expressed exactly what I said," Valenzuela says. "They have done a shitty-ass job, but what can you do?