By Emily Le Coz

JACKSON, Miss (Reuters) - A candidate for mayor of a small town in Mississippi was found dead by a river on Wednesday morning, the victim of an apparent homicide, police said.

Marco McMillian, 34, was one of the first viable, openly gay candidates in Mississippi, according to the Victory Fund, a national organization that supports and endorses lesbian, gay, bisexual and transgender candidates and officials.

The death of McMillian was not being investigated as a hate crime, said Will Rooker, a spokesman for the Coahoma County Sheriff's office. In addition to being gay, McMillian was African American.

The death is not considered politically motivated, despite intense competition in the race for mayor of the Mississippi Delta city of Clarksdale, said Coahoma County Coroner Scotty Meredith.

Police have a person of interest in custody but are not releasing a name and have not filed charges, Rooker said.

McMillian had been missing since early Tuesday when his sport-utility vehicle was involved in a collision outside Clarksdale. The person driving McMillian's vehicle had collided head on with a pickup truck. McMillian wasn't with the driver and, because his whereabouts were unknown, law enforcement officials launched a search.

His body was found near the base of the Mississippi River in Coahoma County on Wednesday. Continued...