How does Stevenson build tension about Hyde in extract 3? (PEEL)

Stevenson uses the murder of Carew to illustrate Hyde's continued violence. The fact that Carew wasn't murdered in the course of a burglary causes more tension, as he was discovered with all of his possessions in tact. Viciously murdered, Sir Danvers Carew's death is seeminngly inexplicable.... without reason. It seems that Hyde kills Sir Danvers Carew simply to demonstrate his power and to release his evil. Thus, Hyde's evilness is gaining in strength, which forebodes further tragedy to come.