(Richmond, IN)--A hearing is set to take place Wednesday morning in which the trigger man in a Richmond murder is expected to change his plea to guilty.  19-year-old Robert Campbell allegedly shot and killed 48-year-old Michael Sekse in a shed behind a home on Sheridan Street in March of last year.  Four other teens and young adults were also allegedly involved, but it was Campbell who did the shooting.  He was to have gone on trial in less than two weeks, but a plea agreement will make that trial unnecessary.  According to court documents, Campbell will plead guilty to murder.  In exchange for that guilty plea, all other associated criminal charges will be dropped.  The amount of time Campbell spends behind bars will be up to Judge Charles Todd of Wayne Superior Court I.  The standard sentencing range for murder in Indiana is 45 to 65 years.  The four other men involved face trials between two weeks from now and the end of September.