(Portland, OR)  --  Sentencing is scheduled next month for a man who assaulted and killed another man near Portland State University.  Twenty-year-old Nicholas Hannan pleaded guilty to first-degree manslaughter with a firearm and second-degree assault for the death of 21-year-old Diego Tejeda-Manzo in November of last year.  Court documents show Hannan assaulted Tejeda-Manzo outside a sandwich shop on Southwest Park Avenue and then shot him several times.  Sentencing is set for January 15th.