Mansion killer spent the day before his rampage as he often did

5years ago

It was the day before he reportedly slaughtered his brother, sister-in-law, niece and nephew then set their N.J. mansion in fire.

Paul Caneiro, 51, pleaded not guilty to four counts of murder and other charges. An employee of his recalls details of that day: "Paul was Paul", said David Natelson the business manager for Ecostar Pest Management, the company the Caneiro brothers owned.

The suspect arrived at the Asbury Park office around 10 a.m. and left around 3 p.m., spending much of his day, as he often did, "with his nose in his iPad", said the employee, "Nothing I saw on Monday was any different than anything I had seen any other day," he added.

14 hours later, prosecutors said he fatally shot the 50-year-old Keith Caneiro on his own front lawn, and walked past him to kill his family.