this is what's left of tony willson's building. he was converting an old print shop into seven live/work units. >> we put a lot of effort into these things and now it's all up in smoke. >> reporter: as flames raged thursday night at the oakland building under construction, nate lampton grabbed his cell phone to record video. his wife had a different idea. >> took one look outside the door, saw the flames and i'm going to pack. by the time i came outside, 15 minutes later i could see the building again in investigators receiving assistance from the atf for good reason. >> and somewhat of a normal practice in the city of oakland with the recent fires that we've had in buildings under construction. >> reporter: since 2012, at least eight large fires were at housing construction projects from concord to emeryville. >> it's just very frustrating and sad. >> reporter: willson is hoping cameras will provide answers. the person hone has access to them is in new york. he also wants investigators to find a man his crew saw leaning the buildi

he is charged with killing nia willson on july 22nd of last year. her sister was stabbed, as well but survived. is he is scheduled to enter a plea august 2nd. >> vallejo police just arrested all three men suspected of killing a pawnshop owner during an armed robbery in 2016. video captured masked men storming into pawn advantage on spring road. they carried handguns and shot and killed the owner and wounded one of his employees. one of the robbers shot and killed his dog. police captured two last week. the other suspect cashtious nelson is in prison serving a sentence for another robbery case. >> protests were held here and across the country today to demand the resignation of puerto rico's governor after leaked messages showed him mocking women and disabled victims of hurricane marie. >> lyanne melendez is live in san francisco where the protesters are still demonstrating today. >> reporter: things don't seem to be winding down at all. this started at 2:00 this afternoon. i think what's been happening is people have been getting off work and joinin

. >> reporter: tony willson was converting an old print shop here to seven live/work units. >> they wereer projects than this. >> reporter: he's hoping surveillance cameras will provide answers. the person ho will has access to them is in new york. he wants investigators to find a man his crew saw leaving the building last night. >>

. >> reporter: tony willson was converting an old print shop here to seven live/work units. >> they were much bigger projects than this. >> reporter: he's hoping surveillance cameras will provide answers. the person ho will has access to them is in new york. he wants investigators to find a man his crew saw leaving the building last night. >> ironically he asked for a match to light a cigarette. >> reporter: the lamptons are glad they didn't have to leave home. >> it's a vibrant, great place to live. >> reporter: there were no injuries due to this fire. embers from the fire did cause two of additional small fires in the area. live in oakland, melanie woodrow, abc7 news. >> thank you. there have been several other suspicious fires at apartment complexes being built across the east bay. two of those burned at the same job site on the oakland, emeryville border. it took place florida state may of last year following another in july of 2017. a seven-story building under construction burned on valdes street in oakland's uptown neighborhood also in july of 2017. a massive fire caused at least

he is found with stabbing and killingnial willson at the b.a.r.t.tation on july 22nd of last year. her sister was stabbed, as well but survived. he is scheduled do enter a plea augusta 2nd. >> protests were held today in puerto rico and across the u.s. demanding the resignation of the governor. puerto ricans say the last straw was a leaked series of he messages showing him mocking women, the disabled and victims of hurricane maria. lyanne melendez is live in san francisco where protesters are still demonstrating today. >> reporter: their demonstration started at 2:00 this afternoon. of course, california time, to coincide with a much larger protest happening on that island that began at 5:00. of course, their time. we're not talking about two or three remarks made by their governor. we're talking about 900 pages obtained with things said by the governor that have been hurtful to the people of prosecutor. >> reporter: this demonstrationing in san francisco was never expected to attract the tens of thousands of protesters that gathered today in san ju