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In custody Source data as of Nov 2, 2026How we get this data

Mark E Osterback

Held at Walton Correctional Institution, Defuniak Springs, Walton County, FL

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Held at
Walton Correctional Institution Defuniak Springs, Walton County, FL
Inmate number
745238 As published by the agency
Status
Listed in prison 6 offenses listed
Sex
Male
Birth year
1968

Release and parole dates

As published by the corrections department. Projected dates can change and are not a promise of release.

Custody status
Close custody

Source: Florida DOC OBIS database, November 2026, checked Nov 2, 2026. Check the record at the source

Contacting Walton Correctional Institution

Address
691 Institution Rd, Defuniak Springs, FL, 32433

Prison guide: visiting, sending money, phone calls and mail.

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Record details

Admitted Nov 9, 1988

Walton Correctional Institution
Inmate number
745238

Charges

  1. Burg/dwell/occup.convey

    Felony Offense 1986-10-15, sentenced 1988-10-14, prison term 5 years 6 months Case 8602171, Seminole County

  2. Sex bat/ wpn. or force

    Felony Offense 1987-10-08, sentenced 1990-01-23, prison term life Case 8803408, Seminole County

  3. Sex bat/phys helpless resist

    Felony Offense 1987-10-08, sentenced 1990-01-23, prison term 30 years Case 8803408, Seminole County

  4. Kidnap;hold ransom or host.

    Felony Offense 1987-10-08, sentenced 1990-01-23, prison term 40 years Case 8803408, Seminole County

  5. Agg asslt-w/wpn no intent to k

    Felony Offense 1987-10-08, sentenced 1990-01-23, prison term 5 years Case 8803408, Seminole County

  6. Agg battery/w/deadly weapon

    Felony Offense 1987-10-08, sentenced 1990-01-23, prison term 15 years Case 8803408, Seminole County
Source: public inmate search

Timeline

  1. Admitted to Walton Correctional Institution

  2. Last seen in the public inmate list

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