Hi dm92, thanks for messaging. Let me try to answer these as best I can.
Regarding Yingying’s whereabouts, I do still believe her remains are in one of the local landfills, though my confidence in that has been shaken some. I believed her remains were in a landfill from the beginning. Before Christensen ostensibly “disclosed” what he did, my thought was based on his characteristics. Christensen is highly intelligent, but extremely lazy, unmotivated, and the kind of person to put in the minimal amount of effort to accomplish his goals. When you combine his general lack of effort with someone brazen enough to bring a victim back to his apartment, I saw two things: (1) he really, really wanted to rape and murder someone, but was uncomfortable working outside his comfort zone, and (2) the most efficient disposal with the minimal amount of effort was the dumpster outside his apartment. That wasn’t a universal assessment at the outset, and still isn’t today. The FBI searched every tip or lead. They have continued searching even since the trial, including a pond in northwest Champaign in September 2019 (after the trial) when they got a tip from an individual who claimed to see someone who fit Christensen’s description exit a car similar to the Astra on a dirt road that led back to this pond in between farm fields back in 2017. Even though it was a tip about something that happened over 2 years earlier, they still followed up and sent divers into the pond. They searched mines, lakes, fields—any tip, from anywhere, led to at least one agent following up to search.
We never found any evidence of him buying tools to bury someone, nor that he ever possessed any such tools. In farm country, buried bodies are routinely recovered during planting or harvest. I could see Christensen dumping a body, but not putting in the effort to bury someone. There is still some interest within investigative circles surrounding Allerton Park in Monticello. It’s big, and there are some things in the investigation that suggest it is a possibility. It’s been searched multiple times though with no luck.
One of the big complicating factors, particularly in efforts to search the landfill, is Christensen’s chronic lying. I am pretty confident at this point that his statement about what he did to Yingying, save for her being in the landfill, is almost all bunk. He and his attorneys played fast and loose with the truth throughout the case. What they told us, just before trial, was that he placed her in three garbage bags with some fruit and milk to mask the smell. The problem with the statement is that the FBI never found the color of garbage bags he claimed to use—and in fact, he purchased a different color of bags in the days before the murder. He also conveniently told us he put the fruit and vegetables in there because it matched up with some receipts FBI recovered during the investigation, and would have been sent to him in discovery. In other words, he took what we knew, by virtue of what he saw in the discovery file, and crafted a story to fit that evidence. Law enforcement has continued to investigate, however, and his statement looks more and more suspect by the day. All of that said, the predominant theory amongst the entire investigative team is that Yingying’s remains are in a landfill. Without certainty on his story, however, we can’t be certain which landfill it would be.
Regarding a landfill search—-that has been the source of much frustration. The FBI declined to do so. I didn’t want to take “no” for an answer though, and asked (begged) various other agencies to do it. The Illinois State Police and the University of Illinois were the most interested, and they went through an extremely thorough and painstaking effort to make it happen. I sat in on many of the meetings with the law enforcement agencies, the Illinois EPA and the landfill management, and found every single meeting infuriating. Every time the ISP/UI investigators sought a solution, more roadblocks appeared. The bottom line, is that between human costs (the Danville landfill is filled with medical waste and asbestos), environmental costs (the landfill abuts the Vermilion River, and is near a neighborhood), engineering costs (for example, the amount of trash that would need to be dug out to reach the particular cell to allow heavy equipment to safely maneuver to the location was astronomical, or securing the scene so nothing leaked into the River, or preventing smells from being a danger to the neighborhood), red tape (as you can imagine, there are tons of procedures in place to protect people and the environment for the dangers associated with waste treatment and storage), and the landfill wanting paid for everything (including not letting authorities re-dump on site—they wanted us to haul everything we dug up to another facility, and pay to re-dump all of it), the costs were well into the tens of millions of dollars. All of that for maybe a 1-2% chance of finding her, and all based on the word of an individual we knew was a liar, and has lied about some of the information related to her remains. While extremely disappointing, I know UI and ISP wanted to do this for the family, and I know they explored every option trying to do so. It just was not realistic based on these circumstances.
Regarding Christensen’s relocation in BOP, such changes are common. The facility he was at originally is filled with gang-bangers and violent criminals. Christensen is, to put it bluntly, a pansy in comparison (anyone who picks on women is a coward). I have little doubt it was not a pleasant experience for him. The facility he is in now is known as a “safe haven” for sex offenders and persons who have been exploited in other facilities. I can’t be certain why he was moved, but my guess is that he was in danger at McCreary. He did lie about being suicidal to get out of the Macon County Jail before trial though, so I have little reason the believe anything he says about his incarceration experience. I’m sure he was hoping BOP would be like his experience in the Livingston County Jail before trial. He was separated there, had an iPad, and it was pretty comfy for him. He even had the audacity to complain about the wireless reception to the jail authorities. The guy is the height of selfish privilege.
Finally, how he got her in the apartment. The working theory is that after he got her in the car, he took her to a cemetery in north Urbana—a staging ground, where he incapacitated her and got her in the duffel bag. There was some evidence throughout that he liked graveyards, and may have used them as a place to exploit women. Nothing is certain there though. Ultimately, we don’t know what happened between the time she got in the car and the time he had her in his apartment.
Thanks for the questions.