Supporters Remember Murdered Professor
Several dozen people attended a memorial service at the campus parking garage where Im's body was found.
"He was just a remarkable and gentle person," said friend Kim Wise.
MU police say their investigation continues.
"It is the number-one priority of the University of Missouri Police Department, to bring to justice the person who caused this unnecessary and very brutal death," said Chief Jack Watring.
The university and campus police have raised a $25,000 reward for information leading to an arrest in the case. Im's family released a statement on Friday, asking for help.
"We are hopeful that these efforts will end in a resolution of the case and, along with the MUPD, we ask for the cooperation of the public in providing information to see that justice is served," the statement said.
Another memorial service will start at 2:30 p.m. Saturday in the MU Union.