tony lopez lozano , 35 , was charged with the august 2013 murder of his boyfriend , brian romo , after fatally stabbing romo in the heart following an argument at their oregon city home .
lozano pleaded guilty to first-degree manslaughter as part of a plea deal and , on monday , a judge sentenced him to 10 years in prison .
lozano claimed that he was ` very intoxicated ' when he killed romo and , ktvz reports .