In this June 18, 2015 file photo, a crew works on what remains of an apartment building balcony that collapsed, killing six college students and injuring several others in Berkeley, Calif.
In this June 18, 2015 file photo, a crew works on what remains of an apartment building balcony that collapsed, killing six college students and injuring several others in Berkeley, Calif. Jeff Chiu AP
In this June 18, 2015 file photo, a crew works on what remains of an apartment building balcony that collapsed, killing six college students and injuring several others in Berkeley, Calif. Jeff Chiu AP