Now, more than four years later, what she found on that card is key to a double murder trial set to begin this week: gruesome photos and videos of a woman being beaten and strangled at a Marriott hotel, her attacker speaking in a strong accent as he urged her to die, her blanket-covered body being snuck outside on a luggage cart.

“In my movies, everybody always dies,” the voice says on one video. "What are my followers going to think of me? People need to know when they are being serial-killed.”

About a week after she took the SD card, the woman turned it over to police, who said they recognized the voice as that of Brian Steven Smith, now 52, a South Africa native they knew from a prior investigation, court documents say.