Meet Bison Engineering’s Team

David W. Heldenbrand, P.E. Forensic Engineer


David W. Heldenbrand, P.E.
Licensed Professional Engineer- Civil and Environmental Engineering – Houston, Texas
Certified Fire Investigator-IAAI

Areas of Specialization -Natural Gas, Propane and Carbon Monoxide Incidents
-Natural Gas Soil Gas Migration

With a B.S. in Civil and Environmental Engineering and a B.A. in Environmental Biology from the University of Colorado, Mr. Heldenbrand has more than 30 years of experience in the engineering and construction industry. David has an extensive background in the engineering and operation of natural gas plants and compressor stations and pipelines, fires and explosions, investigation and testing of carbon monoxide incidents, failure analysis, and the complex analysis of soil gas migration.

Mr. Heldenbrand has extensive trial experience in the areas of natural gas and propane fires and explosions, carbon monoxide production and testing, appliance installation and operation and codes and standards for the above mentioned areas. David has managed numerous multi-disciplined projects, coordinating disciplines of metallurgy, chemistry, structural engineering, electrical engineering and other necessary disciplines into the investigation of numerous claims. He has been called for his services on large scale projects internationally to Malaysia, Mexico, Guam and Canada.

A Professional Engineer licensed in the States of Texas, Arkansas, and Oklahoma, with over 30 years of professional experience as a consulting engineer, Mr. Heldenbrand has provided expert testimony in both deposition and trial on numerous occasions.

David brings strength, integrity and foresight to every facet of our client relationships. [/su_column]


Shane M. Darville, P.E. engineering failures


Shane M. Darville, P.E.
Licensed Professional Engineer- Mechanical Engineering, Texas

Areas of Specialization -Industrial and Farming Machinery failures
-Component Failures
-Warehouse equipment failures

With a B.S. in Mechanical Engineering from the United States Military Academy, West Point and an M.S. in Engineering Management from Missouri University of Science and Technology, Mr. Darville began his career serving 5 years in the US Army. Shane’s background extends from Facilities Manager, managing all service, repair, maintenance, demolition and construction on the buildings and facilities for the entire 1st Cavalry Division at Fort Hood to being the Executive Officer for two Infantry Companies responsible for managing 100’s to 1000’s of lines of equipment worth millions of dollars and the well being of 100’s of soldiers. Responsible for management of assets, Company’s equipment and personnel in two overseas deployments.

As a Professional Engineer licensed in Texas and Missouri, with more than 5 years of experience in various aspects of construction and engineering, Shane brings strength and leadership to our firm and client relationships.


Daniel F. Saavedra Electrical Engineering

Daniel F. Saavedra
Bilingual Civil Engineer- Houston, Texas

Areas of Specialization -Testing Design
-Construction Defects
-Construction Management
-Forensic Analysis

With a B.S. in Civil Engineering from Escuela Colombiana de Ingenieria- Bogota, Colombia, Daniel has 7 years of experience in large scale facilities engineering projects. Civil Design- Concrete and steel- reviewing construction documents, and blueprints, Facilities operations and maintenance, Construction Management and Quality control. Daniel has performed structural evaluations, Construction defects and failure inspections on maintenance equipment failures and design problems.



Dawn Moore Forensic Analysis


Dawn Moore
Office Manager

Dawn has over 23 years of experience of Accounting and Administrative background. As the Office Manager she is responsible for Accounting, Marketing, Evidence Storage, and Building and Grounds maintenance. She is skilled in various accounting programs and preparing business spreadsheets and documents to operate the business in a successful and smooth fashion. In addition, she assists the team in coordinating their schedules and travel plans as needs arise. As new business calls come in to the office, she skillfully obtains the necessary information to direct the project to the proper consultant.


Outside Consulting Resources

William J. Arnoult III Ph.D., P.E.
Consulting Engineer, Metallurgist

Dr. Arnoult’s remarkable credentials include a Ph.D. in Materials Science from Rice University, Registered Professional Engineer, and Fellow of the National Academy of Forensic Engineers.
With supreme qualifications, Dr. Arnoult provides Bison clients credible expert testimony in the field of materials failure analysis of metals, ceramics, glasses, plastics, and elastomers, to name a few.

Theodore C. (Ted) McGill

Construction Management Consultant

Mr. McGill has over thirty-five years of construction management experience in the engineering and construction industry. He has worked in the design and construction of all disciplines and maintained a working knowledge of all facets of the industry, from conceptual design through start-up and operations. His areas of expertise include the areas that normally are the origin of problems and failures – schedule, quality control, cost control, and contract management.

Jeffrey S. Winship

Computer Graphics Consultant – Houston, Texas

For over 22 years, Jeff has developed computer graphics and animation for presentations, courtroom exhibits and demonstrative evidence. As a specialist in scientific and engineering related graphics, he draws upon his experience in mechanical design assistance as well as his fieldwork in refinery/plant incidents, auto accidents and other mechanical failures to create accurate and effective forensic graphics. He provides outstanding technical assistance in the acquisition, translation and graphical representation of field and test data.

Mark T. Kilgore, Ph.D., P.E.

Consulting Structural/Civil Engineer

With over 20 years of forensic experience, Dr. Kilgore has an extensive and impressive background in Structural and Civil Engineering along with Building Construction. This knowledge and experience qualify him to investigate and testify with confidence and surety on cases involving structural issues or potential construction defects. He has a Ph.D. and an M.S. in Building Construction Management as well as an M.E. in Civil Engineering and is a licensed Professional Engineer in many states.