Fire investigators have not been able to determine what cause a massive fire that destroyed an apartment complex under construction in the Seattle suburb of Lynnwood in January. Lynnwood Police Detective Brian Jorgensen says there was too much damage. Investigators, however, have found no reason to suspect foul play. The Herald reports that officials recently closed the case on the fire, which was the largest in Lynnwood’s history. Construction on the 296-unit building was about 60 percent complete and damage was estimated in the millions.