Baytown police said investigators developed information identifying Greenwood's killer. Police said they also received information that Kenny might be in downtown Houston. That prompted them to send officers to the 1910 Courthouse on Fannin Street this morning to attempt to locate Kenny.
After further investigation, officers learned that Kenny killed himself the day after he allegedly shot Greenwood. Police said he shot himself with the same gun that he used to kill Greenwood.
WATCH: View the entire news conference
Police said it was the surveillance video of Kenny and the vehicle that helped them put the pieces together in the murder investigation.
Kenny was at the scene the day before, according to newly released video. The video was taken the day before the killing, and it shows Kenny drive up and then walk toward the area Greenwood was ambushed.
Greenwood was fatally shot April 3 outside the Baytown courthouse at the 700 block of West Baker. He radioed in for help, reportedly saying "I'm bleeding out." He was rushed to Memorial Hermann Hospital by Life Flight where he later died.
PHOTOS: Officers respond after deputy shot at Baytown courthouse
TIMELINE OF EVENTS FROM FATAL SHOOTING OF DEPUTY IN BAYTOWN
ABC13 Investigates Reporter Ted Oberg took a closer look at Kenny and found that he had been writing about Greenwood for years and had a grudge against several law enforcement authorities across Harris County.
RELATED: Everything we know about murder suspect William Francis Kenny
Hundreds of loved ones filled the Second Baptist Church on April 6 to remember the life of Deputy Greenwood.
Greenwood spent 20 years as an attorney before becoming an officer in the Harris County Sheriff's Office, and finally, as Assistant Chief Deputy Constable in Precinct 3.
SEE ALSO: A look at the life of Assistant Chief Deputy Clint Greenwood
Report a typo to the ABC13 staff