Solve the Case Logo
No detective or agency contact email provided.Can you help? See how
MISSING PERSON
CASE #: 2021-138
MISSING PERSON CASE #: 2021-138
Share Case:

Melissa Ann Trumpy

Melissa Ann Trumpy
Share Case:

Status:

Open

Date of Last Contact:

Date of Last Contact:

Missing From:

Monticello, Wisconsin

Summary:

Melissa was last seen on Tuesday night, October 26, 2021, in Monroe, Wisconsin. Authorities believe she traveled from Monroe, Wisconsin, to Shannon, Illinois. Melissa's vehicle was later located abandoned on a rural road in Stephenson County, Illinois. She has not been seen or heard from since that day.

Vital Statistics

Circumstances of Disappearance:

Trumpy was last seen in Monroe, Wisconsin on October 26, 2021. Authorities believe she traveled to Shannon, Illinois that same evening; her boyfriend, Derek Hammer, lived there. She has never been heard from again. After her disappearance, her car was found abandoned on Bolton Road in Freeport, Illinois, with her phone and belongings inside it. A month before Trumpy went missing, Hammer was charged with domestic abuse after Trumpy's son told a teacher he saw Hammer hit his mother and threaten her wth a gun. A photo of Hammer is posted with this case summary. Trumpy had told a friend she was afraid of Hammer, and her three children stated she planned to leave him. He has not been charged in her disappearance or named as a suspect, but Trumpy's loved ones believe he was involved. In May 2023, Hammer was sentenced to five years in prison for his assault on Trumpy and other offenses. Trumpy's case is being investigated as a homicide. It remains unsolved.

Case Last Updated:

Tasks - Can you help?

NamUs Entry

NCIC Entry

Dental Records

Family Contact

The Charley Project

Lead Investigator

Family DNA Submission

Wisconsin DOJ Clearinghouse

Share Case:
Melissa Ann Trumpy

Tasks - Can you help?

NamUs Entry

NCIC Entry

Dental Records

Family Contact

The Charley Project

Lead Investigator

Family DNA Submission

Wisconsin DOJ Clearinghouse

Share Case:

No detective or agency email provided

Can you help?

Without a lead detective or agency contact email, tips to help solve the case can't get to the right place. Community members, you can help by calling the agency and asking for that information to then share with Solve the Case.

Ask for the detective handling this case, or an email address where tips can be sent.

Share what you learn

Timeline of Events

October 2025

New searches are conducted near Shannon and Pearl City. Investigators revisit evidence and continue executing search warrants.


May 2023

Derek Hammer was sentenced to five years in prison for his assault on Trumpy and other offenses. Trumpy's case is being investigated as a homicide. It remains unsolved.


2022

Investigators continue pursuing leads and conducting searches. Multiple agencies remain involved.


December 2021

Carroll County Sheriff Ryan Kloepping says the case is the county’s highest priority. Authorities confirm they are investigating all possibilities, including homicide.


November 2021

Search efforts intensify. Drones, helicopters and cadaver dogs are deployed. The FBI and Illinois State Police become involved.


Wednesday, October 27, 2021

Trumpy’s rental vehicle is discovered abandoned on a rural road near Freeport. Authorities begin a large-scale missing person investigation.


Tuesday, October 26, 2021

Melissa Trumpy leaves work in Green County, Wisconsin; family members believe she was headed to Shannon, Illinois.


September 2021

A month before Trumpy went missing, Derek Hammer was charged with domestic abuse after Trumpy's son told a teacher he saw Hammer hit his mother and threaten her wth a gun.


View Full Timeline

Associated Persons

Derek H. (Person of Interest) - Living

Missing person

Father

Mother

Paternal Grandfather

Paternal Grandmother

Maternal Grandfather

Maternal Grandmother

Paternal Grandfather's Mother

Paternal Grandfather's Father

Paternal Grandmother's Mother

Paternal Grandmother's Father

Maternal Grandfather's Mother

Maternal Grandfather's Father

Maternal Grandmother's Mother

Maternal Grandmother's Father

Paternal Grandfather's Mother

Paternal Grandfather's Father

Paternal Grandmother's Mother

Paternal Grandmother's Father

Maternal Grandfather's Mother

Maternal Grandfather's Father

Maternal Grandmother's Mother

Maternal Grandmother's Father

Paternal Grandfather

Paternal Grandmother

Maternal Grandfather

Maternal Grandmother

Father

Mother

Missing Person

Missing Person

Case Content Disclaimer: The details on this case page are sourced from numerous locations to include family, friends, news postings and government public releases. Solve the Case, Inc. does not guarantee the accuracy of any content as case pages are living documents that frequently update as case details expand.

What would you like to share?

Every case page is free because of supporters like you.

Solve the Case is a 501(c)(3) nonprofit. Your support keeps these cases visible until they are solved.

Make a Donation