Dharminder Vir Sen’s been sentenced to life in prison by a Sheridan judge for the murder of a homeowner in 2009. has sentenced a man convicted of killing Robert Ernst in a 2009 home invasion. Sen was 15 years old at the time the crime was committed. He will have to serve a minimum 35-years before he’ll be eligible for parole. Wyoming’s Supreme ordered him resentenced because of federal court rulings on life sentences for juveniles.