Thanks for hanging in with me on this one. It's been a tough search.
As I suspected, the San Bernardino Sheriff's office was not
forthcoming. In fact, the officer familiar with the case never even
returned my call. However, a family member such as yourself may have
better luck, so I would urge you to contact them -- the contact
information is below.
However, the Sheriff's Office was able to confirm for me that the case
is still open.
In addition, I came across one article from 1998 that discussed the
case. Oddly, I didn't find any 1990 accounts of the murder itself,
even though I searched in several different newspaper databases. I'm
sure the case was reported in the newspapers at the time, but quite
possibly the articles did not make it into any of the commercially
available newspaper databases such as Lexis-Nexis.
The 1998 article was from the Press-Enterprise in Riverside, CA:
February 15, 1998
Unsolved murder cases never over
Evidence can deteriorate, witnesses may die, but years later
police are always willing to pursue new leads.
...Theresa Buchwitz, 40, was found Dec. 6, 1990, on a dirt road near
Barstow with a gunshot wound to the head. San Bernardino County
sheriff's investigators said she was killed inside a van that she used
to deliver medical supplies. Detectives said she was working when she
was abducted and killed. On Dec. 27, 1990, investigators found her
clothes on a dirt road in the Helendale area, about 8 miles from where
the body was found. She was last seen with a white male with brown
hair, age from the mid-30s to early 40s. He was about 6 feet tall and
weighed between 225 and 250 pounds, last seen wearing Western-style
clothing. Investigators believe robbery was the movtive for the
Note the spelling in the article of both the first and last names, as
they are different from the spellings you provided in your original
The contact information for the detective who I was put in touch with is:
San Bernardino County Sheriff's Office
Public Information: 909 387-3545
Homicide Direct line: 909 387-3589
The website for the Sheriff's Office is:
In addition, I came across one resource in the course of my searching
that I want to make you aware of.
The California Attorney General's office has a website listing of
unsolved crimes at:
The case you inquired about is NOT listed at the site. But perhaps if
you contacted the Investigative Support Crime Analysis Unit in the
AG's office, you could encourage them to include the case on the
website. I would suggest starting with the Office of Victim Services,
which can be contacted at:
I wish there were additional information I could provide, but
hopefully these items will be enough to help you move forward on this.
If there is anything else I can do for you in the context of this
case, please don't hesitate to ask. Just post a Request for
Clarification, and I'll do my best to provide whatever assistance I
search strategy: Searched various newspaper databases for information
about the victim and the crime, and searched Google for [ California
unsolved crimes ].