No, the last sentence is not a comment on my view. 
Interpretation:
The speaker is discussing the relevance of a person's previous criminal record and how it can provide insights into their current behavior. The speaker believes that someone who has a history of violence should be taken seriously if they make a threat. The tone of the statement suggests that the speaker is concerned about the potential danger posed by this person.
Is your last sentence in some way meant as a comment on your view of the seriousness of this? 
The publication of this scum's previous record is pertinent: it shows he is a violent person and most definitely should be believed when he makes a threat.