Former Ferguson Police Officer Darren Wilson. Reuters

Darren Wilson is no longer an officer of the Ferguson Police Department, the St. Louis Post-Dispatch reported. The now former police officer resigned Saturday following Monday's grand jury decision, clearing him of wrongdoing in the shooting death of Michael Brown Aug. 9.

Wilson is expected to attend a news conference soon, his attorney, Neil Bruntrager, said. Wilson said in his resignation letter he has decided to leave police work due to security issues. Wilson had been on paid leave since the August shooting.

"I, Darren Wilson, hereby resign my commission as a police officer with the City of Ferguson effective immediately. I have been told that my continued employment may put the residents and police officers of the City of Ferguson at risk, which is a circumstance that I cannot allow. For obvious reasons, I wanted to wait until the grand jury made their decision before I officially made my decision to resign. It was my hope to continue in police work, but the safety of other police officers and the community are of paramount importance to me. It is my hope that my resignation will allow the community to heal. I would like to thank all of my supporters and fellow officers throughout this process."

The death of Michael Brown sparked several months of protests in Ferguson and many other areas, nationally and globally. Protests continued following the grand jury decision, with many demonstrators using the Black Friday weekend to express their outrage.

In an ABC interview Tuesday, Wilson expressed no regret in his actions. “The reason I have a clean conscience is because I know I did my job right,” he said.