Was a BLM agent’s gun used in San Francisco ‘sanctuary city’ murder case?

The criminal case against an illegal immigrant accused of fatally shooting a woman on a San Francisco pier took a new turn Wednesday, as reports emerged suggesting that the gun used to fire the deadly shot may have been stolen from a federal law enforcement agent four days earlier.  The federal Bureau of Land Management said Wednesday that a weapon belonging to one of its law enforcement officers was stolen on June 27 in San Francisco, but the agency would not confirm that the weapon was used in the apparently random shooting that occurred July 1, resulting in the death of woman out for a walk with her father.  A law enforcement official said separately that the gun in that case belonged to a federal law enforcement agent...more

 And this article, along with the info on the lost BLM gun, had this additional information:

The man charged with the shooting, 45-year-old Juan Francisco Lopez-Sanchez, said in interviews with local media that he found the gun wrapped in a T-shirt.

Some things we'd like to know:  a) Was it a BLM ranger's gun? (will not confirm or deny means to me that it was)  b) Was the BLM ranger on-duty or off-duty?  c) The exact location of the theft  d) The date of the theft, and e) The time and date of when this was reported to supervisors. 

UPDATE

This article states:

The firearm used in the homicide was issued to a U.S. Bureau of Land Management law enforcement ranger who was on official government travel in San Francisco when his vehicle was broken into and the firearm was stolen. San Francisco police are continuing to investigate who stole the firearm from the ranger’s vehicle and how Sanchez-Lopez gained access to the gun.