A murder is under investigation by the Michigan State Police in Cass County. A 32-year-old Elkhart man is in custody and accused of stabbing a 59-year-old man to death in Mason Township last night. Troopers were sent to a home in the 16-thousand block of State Line Road just after 8:20 last night and found the victim dead. No details about what lead to the murder have been released. Authorities have also not released the names of the suspect or victim.