The family is offering a $10,000 reward for any information that leads to the arrest and conviction of the person responsible for the murder.
The 43-year-old Wick was found dead in his Howard home in February. A friend found Wick's body in the basement of the home.
An autopsy revealed that Wick had been shot by a gun left at the scene of the crime.
The last contact anyone had with Wick was a text message reply sent days before his body was discovered.
Investigators from the Brown County Sheriff's Department say they do not believe this was a burglary or random act.
Anyone with information should contact the Green Bay Area Crime Stoppers at 920.432.STOP (7867) or by texting "GBTIP plus your message" to 274637.