As part of their motion to dismiss, the DNC et al. say (internal citations removed):
On July 6, 2016, Plaintiffs filed affidavits of service of process, in which Shawn Lucas and Brandon Yoshimura of One Source Process, Inc. claim to have served Rebecca Christopher (described by the affidavits as a “Creative Strategist”) with process for both the DNC and its Chair at 1:30 p.m. on July 1st. In fact, the person with whom Mr. Lucas and Mr. Yoshimura interacted was not Ms. Christopher, but a different DNC employee named Rebecca Herries.
The allegations were "fraud", "negligent misrepresentation", violation of the D.C. Consumer Protection Act, "unjust enrichment", "breach of fiduciary duty", and "negligence".
Snopes confirmed with Washington D.C. Metro Police and Shawn's employer that he died on on August 2.