State ex rel. Whittaker v. Lucas Cty. Prosecutor's Office, 2020 Ohio 4093

Relator Michael Whittaker filed an affidavit under R.C. 2935.09(D) alleging felonious assault by Courtnie Lykans and Ronald Collins Jr. against his child and mailed it to the Lucas County Clerk; the clerk forwarded it to a reviewing judge.
The Lucas County Prosecutor’s Office responded it could only prosecute felonies by indictment and informed relator that double jeopardy barred further prosecution (after the state had pursued child endangering charges).
Relator filed a mandamus action seeking to compel the prosecutor to consider charging the two individuals with felonious assault, arguing felonious assault and child endangering were not allied offenses and double jeopardy did not apply.
The prosecutor submitted the plea/hearing transcripts and records showing it presented evidence to a grand jury, which returned an indictment for felony child endangering; the prosecutor maintained it lacked evidence the named individuals caused the injuries.
The court reviewed mandamus standards and summary-judgment law, found relator failed to present evidence that the prosecutor acted unreasonably or that there was new evidence unknown to the prosecution, denied relator’s summary-judgment motion, and granted summary judgment to the prosecutor, dismissing the petition.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether relator is entitled to a writ compelling prosecution of felonious assault	Whittaker: prosecutor abused discretion by refusing to prosecute; mandamus should compel prosecution	Prosecutor: charging decisions are discretionary; no evidence linking suspects to injuries; grand jury returned child-endangering indictment	Denied — relator failed to show abuse of discretion or a clear legal right to compel prosecution
Whether R.C. 2935.09(D) requires the prosecutor to file charges after a private affidavit	Whittaker: filing under R.C. 2935.09(D) demands the prosecutor consider and prosecute the offense	Prosecutor: statute permits review/referral but does not mandate prosecution; prosecutor has wide discretion	Held: Statute does not require prosecution; prosecutor’s decision is discretionary
Whether double jeopardy or allied-offense principles bar further prosecution or compel relief	Whittaker: prior child-endangering plea/conviction does not bar felonious assault; offenses not allied	Prosecutor: felony prosecution must proceed by indictment; prosecution presented evidence and pursued child endangering; no new evidence to support additional charges	Court did not find double jeopardy supported relator’s claim; relator nonetheless failed to produce facts showing entitlement to mandamus

State ex rel. Evans v. Tieman, 157 Ohio St.3d 99 (2019) (mandamus elements to compel public official)
State ex rel. Waters v. Spaeth, 131 Ohio St.3d 55 (2012) (mandamus standard and lack of adequate remedy)
State ex rel. Bunting v. Styer, 147 Ohio St.3d 462 (2016) (private-affidavit review does not force prosecution)
State ex rel. Master v. Cleveland, 75 Ohio St.3d 23 (1996) (mandamus to compel prosecution only when refusal is an abuse of discretion)
Mootispaw v. Eckstein, 76 Ohio St.3d 383 (1996) (prosecutorial charging decision generally not subject to judicial review)
Harless v. Willis Day Warehousing Co., 54 Ohio St.2d 64 (1978) (summary-judgment standard)
Vahila v. Hall, 77 Ohio St.3d 421 (1997) (moving party’s burden in summary judgment)
State ex rel. Clay v. Cuyahoga Cty. Med. Examiner’s Office, 152 Ohio St.3d 163 (2017) (court may enter judgment for nonmovant after motion and response)