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Practice areas


  1. Federal Crime: 50%
    26 years, 150 cases
  2. Criminal Defense: 50%
    32 years, 5 thousand cases

Attorney endorsements

3 total 

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  • Anthony Richard Tuorto

    I endorse this lawyer.


    Anthony Tuorto Criminal Defense Attorney
    Relationship: Other

  • Michael S. Waddington

    I endorse William. He is a highly skilled attorney that is well respected in the legal community.


    Michael Waddington Military Law Attorney
    Relationship: Fellow lawyer in community

Contact info

Easton Thompson Kasperek Shiffrin LLP

16 W Main St
Suite 243
Rochester, NY, 14614


NYDue to reregister within 30 days of birthday 198503/13/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Jeffrey A. Jacobs Memorial AwardMonroe County Public Defender Office2011
Charles Crimi AwardMonroe County Bar Association1999
Work experience
TitleCompany nameDuration
PartnerEaston Thompson Kasperek LLP2008 - Present
Adjunct Professor of LawState University of New York Buffalo Law School1999 - Present
N/ALaw Office of William Easton2006 - 2008
First DeputyNew York State Capital Defender Office1999 - 2005
Assistant Public DefenderMonroe County Public Defender Office1984 - 1989
Association namePosition nameDuration
New York State Association of Criminal Defense LawyersMember1990 - Present
Monroe County Bar Association, Criminal Justice SectionMember1989 - Present
New York State Defenders AssociationMember1989 - Present
Legal cases
Case nameOutcome
People v. Harris, 55 AD 3d 958 (3d Dept. 2008)Defendant prevailed. Convcition vacated
People v. Mateo, 92 NY 2d 327 (1999)Defendant prevailed.
Hynes v. Tomei, 92 NY 2d 613 (1998)Defendant prevailed. Statute declared unconsitutional
See all legal cases 
Publication nameTitleDate
Annual Survey of American LawDevelopments in Criminal Post-conviction Law1984
School nameMajorDegreeGraduated
New York University School of LawLawJD - Juris Doctor1984
Hamilton CollegeEnglishBA - Bachelor of Arts1979
Speaking engagements
Conference nameTitleDate
Monroe County Public Defender Continuing Legal EducationCriminal Motion Practice2014
New York State Bar Association ConferencePlea Negotiation after Lafler and Frye2013
Expert evidence in a criminal caseFrye and Daubert motions in New York2011
Challenging Scientific EvidenceHearsay and Scientific Evidence2011
Trial of a Death Penalty CaseCapital Defense2010
Defending a DNA CaseDNA expert testimony2010
Trial of a Death Penalty CaseCapital Defense2009
Death Penalty PolicyCriminal Defense2009
Trial of a Death Penalty CaseCapital Defense2006
NYSDA Annual criminal justice trainingJury Selection2006