Iowa Teens Plead Guilty to Murdering Spanish Teacher Over Bad Grade

Two Iowa high school students admitted to killing their Spanish teacher in retaliation for a poor grade.
The students ambushed their teacher, Nohema Graber, in a park and beat her to death with a baseball bat.
Graber's body was found hidden under a tarp, wheelbarrow, and railroad ties.
Prosecutors will recommend life in prison with eligibility for parole after 30 years for one teen and 25 years for the other.
The students were charged as adults but were not subject to mandatory life without parole due to their age.