Wilber Romero, 26, (second right) was arrested on Friday on murder and arson charges for allegedly setting a fire which killed his parents, Jose and Nicolasa (center), his younger sister Iris, 21, (also center) and which put his 24-year-old sister Wendy (far left) and younger brother Angel, who is now 17, (far right) in the hospital,according to KGTV reports.