Mike’s son, Matty, was a police officer who was killed by two corrupt cops before the events of “Better Call Saul.”
Matty Ehrmantraut, Mike’s son, was a dedicated Philadelphia police officer who found himself in a situation where he discovered the corruption within his own department. Matty was troubled by the corruption and confided in his father, Mike, who advised him to keep his head down. However, Matty’s integrity wouldn’t allow him to ignore the wrongdoing. This put him at odds with his corrupt colleagues, who feared he would expose them.
The two corrupt cops, fearing that Matty would turn them in, decided to take action to protect themselves. They arranged what appeared to be a routine call and ambushed Matty, killing him to ensure their activities remained secret. Mike was devastated by his son’s death and was initially in denial about the circumstances surrounding it. He later investigated and discovered the truth about the corruption and the betrayal that led to Matty’s murder.
Mike’s quest for vengeance and justice for his son’s death becomes a significant part of his backstory and character development in “Better Call Saul.” It is a driving force behind many of his actions and decisions throughout the series, and it also serves as a catalyst for his eventual involvement with the criminal underworld.