Date: Jan 29, 2026

Comparator Specificity and Retaliation Causation: No Prima Facie ADEA/PHRA Case Without Truly Similar Comparators or a Causally Suggestive Timeline

Introduction

In William Richter v. Duquesne University of the Holy Spirit (3d Cir. Jan. 27, 2026) (not precedential), the Third Circuit affirmed summary judgment for Duquesne University and James Miller on claims of age discrimination and retaliation under the Age Discrimination in Employment Act (“ADEA”) and the Pennsylvania Human Relations Act (“PHRA”).

Richter, a gift officer in Duquesne’s advancement office, was hired at age 55, promoted twice, and terminated at 62. After internal disputes involving donor portfolio reassignments and an internal HR complaint process, Duquesne terminated Richter, citing multiple conduct and performance issues—most prominently, an alleged policy-violating solicitation that promised perpetual naming rights for a seven-figure, deferred, revocable gift without required approvals.

The key issues on appeal were whether Richter could establish a prima facie case of (1) age discrimination—principally through comparator evidence suggesting disparate treatment of “similarly situated” younger employees—and (2) retaliation—principally through a causal link between an alleged age-discrimination complaint and his termination.

Summary of the Opinion

Applying the McDonnell Douglas Corp. v. Green burden-shifting framework, the court held Richter’s claims failed at step one because he did not establish a prima facie case for either age discrimination or retaliation.

Age discrimination: Richter did not show he was treated less favorably than a similarly situated sufficiently younger employee. His proposed comparators (Miller and Krebs) were not similarly situated in role, responsibilities, or the nature and seriousness of conduct at issue.
Retaliation: Richter did not show causation between protected activity and termination; a near three-month gap—coupled with intervening discovery of alleged policy violations—was not “unusually suggestive” and did not support a causal inference.

Analysis

Precedents Cited

The panel’s analysis is structured around well-worn Third Circuit and Supreme Court doctrine governing summary judgment, circumstantial proof, comparators, and temporal proximity:

Campbell v. Pa. Sch. Bds. Ass'n, 972 F.3d 213 (3d Cir. 2020)

Cited for the standard of de novo review of summary judgment and the requirement to apply the same standards as the district court. Its role is procedural: reinforcing that the appellate court independently evaluates whether genuine disputes of material fact exist.

Qin v. Vertex, Inc., 100 F.4th 458 (3d Cir. 2024)

Cited for the Rule 56 formulation: summary judgment is proper when “there is no genuine dispute of material fact” and the movant is entitled to judgment as a matter of law. This frames the panel’s emphasis that Richter’s evidence, even credited, could not satisfy prima facie elements.

McDonnell Douglas Corp. v. Green, 411 U.S. 792 (1973)

The foundational burden-shifting framework for discrimination claims based on circumstantial evidence: (1) prima facie case; (2) legitimate reason; (3) pretext. The panel’s holding turns on step one, making the prima facie showing decisive.

Marra v. Phila. Hous. Auth., 497 F.3d 286 (3d Cir. 2007)

Supplies the Third Circuit’s articulation of McDonnell Douglas steps and the elements of a retaliation prima facie case. The opinion uses Marra both for structure and for the retaliation elements (protected activity, adverse action, causal connection).

Anderson v. Consol. Rail Corp., 297 F.3d 242 (3d Cir. 2002)

Provides the four-element prima facie test for ADEA discrimination and the comparator route to prove the fourth element (retention of a “similarly situated” sufficiently younger employee). The panel relies on Anderson to evaluate whether Richter’s comparator evidence could support an inference of discrimination.

Showalter v. Univ. of Pittsburgh Med. Ctr., 190 F.3d 231 (3d Cir. 1999)

Cited via Anderson as part of the Third Circuit’s ADEA prima facie formulation; it supports the doctrinal baseline that the fourth element requires circumstances supporting an inference of age-based discrimination.

Daniels v. Sch. Dist. of Philadelphia, 776 F.3d 181 (3d Cir. 2015)

Used for the proposition that ADEA and PHRA claims are analyzed coextensively. This eliminates any need for separate doctrinal tracks and allows the panel to resolve both statutes together.

Monaco v. Am. Gen. Assur. Co., 359 F.3d 296 (3d Cir. 2004)

Central to the comparator analysis: determining whether employees are “similarly situated” requires attention to job function, supervisory responsibility, salary, and other workplace-relevant factors. The court uses Monaco to reject Richter’s attempt to compare himself (a subordinate gift officer) to Miller (department leader/supervisor).

Thomas v. Town of Hammonton, 351 F.3d 108 (3d Cir. 2003)

Provides guidance on temporal proximity: even a three-week gap is not necessarily “unusually suggestive” of retaliatory motive. The panel invokes Thomas to underscore that Richter’s near three-month gap—especially with intervening developments—cannot, by itself, establish causation.

Legal Reasoning

1) Age Discrimination: the “Similarly Situated” Comparator Requirement

The dispute focused on the fourth prima facie element: whether Richter’s termination occurred under circumstances supporting an inference of discrimination. Richter attempted to satisfy this element through comparators.

Miller as comparator: The court found Richter and Miller were not similarly situated because Miller led the advancement office and had supervisory authority, while Richter was a subordinate. Under Monaco v. Am. Gen. Assur. Co., differences in supervisory level and job function defeat similarity. Additionally, the court emphasized that Richter’s termination was not tied to a single allegation type; Duquesne cited multiple policy and performance issues, including the naming-rights violation, meaning a comparison limited to a sexual harassment-policy context did not match the termination rationale.
Krebs as comparator: The court treated Krebs’s conduct (a misleading comment to a donor based on reviewing Richter’s notes in a shared system) as materially different from Richter’s conduct (soliciting a seven-figure, deferred, revocable gift while promising unapproved, perpetual naming rights in violation of policy). The seriousness and consequences also differed: Krebs’s statement did not derail the donation, while Richter’s promise allegedly “absolutely devastated” the donor when rescinded. Thus, “no reasonable juror” could find the conduct comparable.

The through-line is that a plaintiff cannot rely on generalized workplace unfairness; the comparator must align on relevant employment characteristics and the nature and gravity of the alleged misconduct tied to the adverse action. Without a valid comparator, Richter could not create an inference that age “because of” age drove termination.

2) Retaliation: Causation, Temporal Proximity, and Intervening Events

The court assumed the protected activity framework but held Richter failed the causation element. Richter’s alleged protected activity was an email accompanying an HR complaint indicating he planned to file an age discrimination complaint.

The panel stressed two causation obstacles:

Timing: A near three-month gap between the email and termination is not “unusually suggestive,” especially under Thomas v. Town of Hammonton (where even three weeks was not unusually suggestive).
Intervening events: Within that period, the University discovered Richter’s alleged policy violations regarding a major gift solicitation and naming rights. Those intervening events, on the panel’s view, supplied an independent basis for termination that breaks an inference of retaliatory causation.

Notably, the panel declined to resolve disputes about whether the termination reason was pretextual or whether Miller actually knew of the age-discrimination reference. Because the claim failed at step one (no causal link), the court treated those step-two/step-three disputes as non-dispositive.

Impact

Although “NOT PRECEDENTIAL,” the decision reflects and reinforces several practical litigation constraints in ADEA/PHRA cases in the Third Circuit:

Comparator evidence must be tightly matched. Plaintiffs should expect courts to scrutinize hierarchy (supervisor vs. subordinate), job duties, decision-making authority, and the misconduct alleged as the stated basis for termination. Attempting to compare across organizational levels, or across markedly different policy violations and consequences, is unlikely to satisfy the prima facie inference requirement.
Retaliation causation is difficult to infer from timing alone when months pass and misconduct is discovered. A several-month gap, especially with intervening policy violations, will generally not be enough without additional evidence (e.g., antagonism, inconsistent explanations, unusual escalation, or direct proof of retaliatory animus).
Step-one failures can short-circuit pretext disputes. The opinion underscores that even arguable disputes about knowledge or pretext may never be reached if the plaintiff cannot first establish the prima facie elements.

Complex Concepts Simplified

Summary judgment: A case can be decided without trial when the evidence—viewed in the nonmoving party’s favor—shows no genuine dispute of material fact and the movant wins as a matter of law.
Prima facie case: The initial showing a plaintiff must make to create an inference of unlawful discrimination or retaliation and move to the next stage of analysis.
McDonnell Douglas burden-shifting: A three-step method for circumstantial evidence cases: (1) plaintiff shows a prima facie case; (2) employer articulates a legitimate reason; (3) plaintiff proves the reason is pretext.
Similarly situated comparator: Another employee who is similar in relevant workplace respects (role, responsibilities, hierarchy, and circumstances of the alleged misconduct) such that different treatment can support an inference of discrimination.
Protected activity: Conduct like making a charge or complaint of discrimination that anti-retaliation statutes protect from employer reprisal.
Causal connection / temporal proximity: Proof that the adverse action occurred because of the protected activity. Very close timing can sometimes support causation, but longer gaps—especially with intervening events—usually require additional evidence.
Pretext: Proof that the employer’s stated reason is not the real reason and that discrimination or retaliation was the true motive. The court here did not reach this stage because it found no prima facie case.

Conclusion

The Third Circuit affirmed summary judgment because Richter did not clear the threshold prima facie requirements for either claim. On age discrimination, his proposed comparators were not “similarly situated” given differences in hierarchy, duties, and the seriousness and consequences of alleged misconduct. On retaliation, a near three-month gap—combined with intervening discovery of policy violations—did not support a causal inference.

The decision’s broader significance lies in its rigorous, element-by-element enforcement of prima facie requirements: without a properly matched comparator (for discrimination) or evidence supporting causation beyond timing (for retaliation), a case may end at step one, before any pretext dispute is even reached.