Timely - Reliable - Thorough

Our Staff

John A. Markley, Investigator - has investigative experience beginning in 1969 as a police patrolman, investigator, district attorney’s investigator and private investigator including  South Beloit Police, South Beloit, IL-Sgt., Winnebago County Sheriffs Deputy, Rockford, IL, Beloit Police Department-Police Officer, Detective & SWAT Team Commander, Beloit, WI (Retired), Investigator for the Rock County District Attorney’s Office, WI. John has served as a private contractor in Amman, Jordan training Iraqi Police Officers.

Shawn M. Markley, Investigator - worked for the Winnebago County Sheriffs Department, Rockford, IL for 5 years, taught report writing to incoming correctional officers and has worked for Markley Investigations, Inc. since 2005.

Craig Johnson, Investigator - has 35 years of law enforcement experience. He served as a Patrol Officer and School Resource Officer. He served as a Detective for over 20 years. He also served on the Beloit Crime Scene Unit since it’s inception (1983). He has had speciality training in homicide investigation, death investigation, interviewing and interrogation, arson, white collar crime, sexual assault investigations and background investigations. He also taught at the Blackhawk Technical College Police Recruit Academy, training police recruits in evidence collection from various crime scenes and interview and interrogation techniques.

Bobby Pittman, Investigator - has worked for the Beloit Police Department as a Police Officer for 18 years (retired) and for Markley Investigation, Inc. since 2005. He has served in Iraq and Afghanistan as a private contractor training Police Officers in those countries.

Michael McDaniel, Investigator - has 34 years of experience in investigative procedures including Winnebago County Sheriff’s Police, Research and Investigative Laboratories, Inc., Rockford Park District Police, Per Mar Security Services and EPI Security Services. He has worked for Markley Investigations since 2008.

Paul Mains, Jr., Investigator - has 12 years of investigative experience including 8 years on the Winnebago County Sheriff’s Dept. and 4 years in Security. He has worked for MII since 2013.

Jon Christiansen, Investigator - is an investigator and process server for Markley Investigations, Inc. His primary duties are conducting criminal and civil investigations. He also conducts surveillance and process service. Prior to working for Markley Investigatons; Jon worked 2 1/2 years as a Correctional Officer with the Rock County Wisconsin Sheriff. He was then a Beloit Police Officer until his retirement.

Sandy Markley, Office - has worked for Markley Investigation, Inc. since 1999 and has 36 years of office experience.

Heidemarie Watson, Office - has 23 years of office experience including working for a large Madison, WI attorney’s office. She has worked for MII since 2011.

Vayda Nerge, Office - has completed three years of college, has 11 years of  experience in Microsoft and 3 years of experience using Mac OS. She has been with Markley Investigations, Inc. since 2015.

Sandra Riese, Office - has worked as a secretary for many years including Beloit Corporation.