A guilty plea in an Oskaloosa murder case.  26-year-old Alicia Ritenour pleaded guilty Thursday (9/26) to child endangerment resulting in death and was sentenced to 50 years in prison.  She had been charged with first degree murder in the death of her 17-month-old daughter, Ava, in January 2014.  Ritenour was convicted of first degree murder later in 2014 and had been serving a life sentence.  But last year, a judge ruled that Ritenour had ineffective counsel and ordered a new trial.  After some delays, a new trial was scheduled to start Monday (9/30) in Mount Pleasant.