The reward for the safe return of a missing Grand Rapids man has increased.

It has been a month since 31-year-old Jamel Parker disappeared after a party in Grand Rapids. Police have searched the area by helicopter and marine unit.

Parker's family is now offering a $10,000 reward for his safe return.

"We just want to continue reaching out to those who may know information or have been told any little detail from someone at the party that night to come forward anonymously because any little detail will help put a story together at this point," says Parker's sister, Jamie Gray.

He is 5 feet 5 inches tall, 180 pounds with brown hair and brown eyes. Police say he was last seen wearing a black baseball hat, black sweatshirt and blue jeans.

If you have any information please contact GRPD or Silent Observer.