of a man. reporter: julie, behind me in this dumpster are some burned books. these books were inside this portable classroom inside st. john s church. the books burned early sunday morning when this building was set afire. apparently, this arsonist returning to finish the job. it is this face in a sketch, and the possibility of more fires that keeps sylvia maldonado up at night. we haven t been able to sleep since. reporter: she s returning to saturday morning, when someone set fire to her neighbor s home when they were sleeping inside. i m just worried that he s going to come back to this area. reporter: her worry apparently justified, because the arsonist returned to revictimmize st. john s church. maybe he wants the community to know that he s lost. reporter: images of a potential suspect. ktvu obtained these still pictures today from a home surveillance camera. it shows a man matching the description, setting fire to the front parch on friday. he returned th
in this dumpster are some burned books. these books were inside this portable classroom inside st. john s church. the books burned early sunday morning when this building was set afire. apparently, this arsonist returning to finish the job. it is this face in a sketch, and the possibility of more fires that keeps sylvia maldonado up at night. we haven t been able to sleep since. reporter: she s returning to saturday morning, when someone set fire to her neighbor s home when they were sleeping inside. i m just worried that he s going to come back to this area. reporter: her worry apparently justified, because the arsonist returned to revictimmize st. john s church. maybe he wants the community to know that he s lost. reporter: images of a potential suspect. ktvu obtained these still pictures today from a home surveillance camera. it shows a man matching the description, setting fire to the front parch on friday. he returned three times until he was successful. the