Updated

Chapel Hill authorities believe there could be other suspects who were accessories to the murder of University of North Carolina senior Eve Carson, and the governor of North Carolina issued a $10,000 reward in the hopes of getting more information.

Police released the announcement by Gov. Michael F. Easley this week, though the proclamation he issued is dated March 13.

"An intensive investigation ... has resulted in the arrest of two suspects, Demario James Atwater and Laurence Alvin Lovette Jr.," Easley said in his statement. "However, it is believed that further information may exist that could possibly implicate others as accessories after the fact.

"It is believed that the issuance of a Governor's Reward would be beneficial in developing new leads that would help bring anyone associated with this heinous crime to justice."

The announcement doesn't indicate what has led Chapel Hill police and the FBI to theorize that others might have been involved in Carson's killing.

It asks that anyone with any further information about the case contact the State Bureau of Investigation or the Chapel Hill Police Department.

The shooting death of 22-year-old Carson, the popular student body president from Athens, Ga., stunned the community. Carson's body was found about a mile from the Chapel Hill campus earlier this month.

At a large memorial service on Tuesday, Carson's father said he wanted the thousands of mourners to find solutions to the world's violence, prejudice and inequity.

An estimated 10,000 people attended the service at the campus basketball arena. Bob Carson did not speak, but offered a statement challenging his daughter's fellow students to tackle the world's problems.

Several of Carson's friends talked about her ability to excite and to mentor.

Seventeen-year-old Lovette and 21-year-old Atwater of Durham are charged with murder in what police say was a random act.

FOX News' Catherine Donaldson-Evans and The Associated Press contributed to this report.