Police have arrested a Vallejo man for alleged attempted murder in a firebombing last week. The fire seriously injured 12-year-old twin brothers and destroyed the home. One of the twins suffered burns on more than 35 percent of his body. Vallejo Police arrested 51-year-old William Strong for investigation of attempted murder, arson with great bodily injury and explosion of a destructive device with the intent to kill. Police believe the targets of the firebombing were two older brothers of the twins. The older brothers were reportedly involved in a confrontation with Strong´s nephews at a movie theater earlier the same night.