Cesar Mazza pleaded guilty this week to two counts of third-degree murder in the 2015 stabbing deaths of his 19-year-old girlfriend, Tionna Banks, and her 72-year-old grandmother, Valerie Crumpton.
“Their absence haunts every holiday,” one family member told the court Wednesday.
The family reported that Mazza had assaulted Banks, specifically when she refused to name their newborn son after him…