United States v. David R. Rivenbark

Court of Appeals for the Eleventh Circuit·Decided September 5, 2018·No. 17-13729·Unpublished

Opinion

[DO NOT PUBLISH]

IN THE UNITED STATES COURT OF APPEALS

FOR THE ELEVENTH CIRCUIT

No. 17-13729

Non-Argument Calendar

D.C. Docket No. 6:16-cr-00170-PGB-DCI-1

UNITED STATES OF AMERICA, Plaintiff-Appellee,

versus

DAVID R. RIVENBARK, Defendant-Appellant.

Appeal from the United States District Court for the Middle District of Florida

(September 5, 2018)

Before WILLIAM PRYOR, BRANCH and HULL, Circuit Judges. PER CURIAM:

After a jury trial, defendant David Rivenbark was convicted of:

(1) transporting and aiding and abetting in the transport of child pornography, in violation of 18 U.S.C. §§ 2252A(a)(1), 2252A(b)(1), and 2 (Count 1); and (2) knowingly possessing materials containing child pornography, in violation of 18 U.S.C. § 2252A(a)(5)(B) (Count 2). The charges stemmed from Rivenbark’s posting in an internet chatroom a Dropbox hyperlink that contained child pornography, which led to law enforcement’s tracking him down and conducting a forensic search of his computer.

In his appeal, Rivenbark contends that: (1) the government did not present sufficient evidence to support his convictions; and (2) the district court’s jury instruction on possession constructively amended his indictment and created a mandatory presumption that violated his due process rights. After careful review, we affirm.

I. BACKGROUND

Because defendant Rivenbark challenges the sufficiency of the evidence supporting his convictions, we start by outlining the trial evidence about the investigation that led to his arrest and the forensic examination of his laptop computer. A. Detective Brad Gallant’s Investigation

In August 2014, Detective Brad Gallant, with the York Regional Police in Ontario, Canada, led part of an investigation targeting the distribution and consumption of child pornography. As part of that investigation, Detective Gallant staked out chatrooms on a website called Chatzy, where previous investigations had uncovered the exchange of child pornography.

On August 19, 2014, Detective Gallant joined a particular chatroom named “Send and Share,” with a description that read, “Do not trade, this room is only meant for willing shares.” Detective Gallant observed the following exchange. One user, “Jackson,” stated “if you truly want to see little girl porn hit me up” and provided his username for another sharing application. A second user, “Dick6Inch,” offered to provide 10 links and asked others to click on them. A third user named “hrdgy2k00,” who was later identified as defendant Rivenbark, then posted a hyperlink to a Dropbox account.

Dropbox is a company that hosts an off-site virtual storage application based in California. After creating an account, users may place items in a Dropbox folder and then access them remotely through the application or, as in this case, by using a designated internet hyperlink. The hyperlink posted by hrdgy2k00 led to a folder entitled “Share For” and contained over 100 videos of child pornography.

Hrdgy2k00 asked the others in the chatroom to post more hyperlinks containing child pornography, stating: “anyone got more like that link? . . . that

actaly [sic] work.” Dick6Inch retorted that all of his hyperlinks worked, and hrdgy2k00 replied, “then post em pls.” Dick6Inch then posted a series of links and introduced them as “Free Pedo Boys and Girls Fucking Links.” “Pedo” is short for pedophile and denotes a sexual interest in children.

Detective Gallant screen captured the Chatzy conversation and the contents of the Dropbox account posted by hrdgy2k00. After reviewing a cross-section of the video content, Detective Gallant contacted Dropbox about who had created that account. Detective Gallant was not able to tie hrdgy2k00 to the creation of the Dropbox account.

But, Detective Gallant did determine that the internet protocol (“IP”) address for hrdgy2k00 originated in Oviedo, Florida. 1 From Canada, Detective Gallant forwarded his investigation materials to his liaison for the United States Department of Homeland Security (“DHS”), who then forwarded the materials to a DHS field office in Orlando, Florida. B. DHS Investigation and Interview The DHS field office in Florida submitted a subpoena request to the service provider associated with the IP address identified by Detective Gallant and found that the account was registered to David R. Rivenbark at 1008 Wainwright Drive, Oviedo, Florida.

1 An IP address is a temporary address that a computer uses to communicate with the internet.

On November 26, 2014, three DHS agents conducted an interview with Rivenbark at his home. The agents told Rivenbark that someone had posted hyperlinks to child pornography in a chatroom on Chatzy and that they had traced this activity to his address. According to the agents, Rivenbark calmly responded that he was familiar with Chatzy and that he had seen child pornography on that website before.

When the officers pressed further, Rivenbark admitted that he had used his personal laptop to view child pornography online. Rivenbark denied that he ever saved or downloaded any of this child pornography, but he also told the officers that he routinely used a computer program to delete information from his computer hard drives.

The DHS agents asked about the profile name hrdgy2k00, and Rivenbark claimed that he had used it previously on a dating website but did not use it to post hyperlinks on Chatzy. Rivenbark later confessed to being hrdgy2k00 from Chatzy and to posting the Dropbox hyperlink that he knew led to a folder containing videos of child pornography.

The agents asked him how long he had been looking at child porn.

Rivenbark responded that he began while in college in the mid-1990s and that he was primarily interested in high-school-aged girls. Rivenbark admitted that he was sexually aroused by the images and that he had masturbated to them. When asked

if he had a problem, Rivenbark responded that he did not know why he had a “compulsion” for “young girls.”

Rivenbark gave the DHS agents permission to check his laptop and other devices. This initial search yielded no results, but the agents seized Rivenbark’s laptop and two external hard drives for further investigation. Near the end of the interview, the agents presented Rivenbark with a voluntary waiver containing his Miranda rights, 2 and he signed it. Rivenbark was not arrested that day. C. Forensic Scan of Rivenbark’s Computer A DHS forensic analyst later examined Rivenbark’s laptop computer and hard drives to check for child pornography.

At trial, the following facts were established about files on a computer.

While browsing images on the internet, a user has the opportunity to download and save images at any time. Even if the user does not download or save images when visiting a web page, the computer automatically generates temporary internet files of the images and stores them in a cache. These cached files represent the images available to the user while he or she browses a particular page. This process assists the user by allowing that page to load faster if the user chooses to return to it.

Periodically—or when the user elects to do so—the temporary internet files are deleted from the cache. Deleted files go into unallocated space on the hard

2 See Miranda v. Arizona, 384 U.S. 436, 86 S. Ct. 1602 (1966).

drive and reside there until they are overwritten or replaced by new information. Unallocated data is not accessible to the user without manipulation or the use of recovery tools on the system, but signifies a file that was present on the computer’s allocated space at one time.

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