Alibi posting, from September past.

SAN FRANCISCO – An attack last year on Silicon Valley's power grid appears to have involved only one shooter and did not require access to technology or a high degree of training, an FBI official said.
The incident began when one or more people lifted heavy manhole covers south of San Jose, climbed under the road and cut AT&T fiber optic cables, temporarily knocking out 911 service and phone service, sheriff's officials have said.

About 15 minutes later, someone fired a high-powered rifle into a nearby PG&E substation, damaging numerous transformers.
http://www.foxnews.com/us/2014/09/11...others-say-it/