Seth Rich
© Metropolitan Police DepartmentSeth Rich was killed on July 10, 2016 in Northwest D.C.
Jack Burkman, a GOP lobbyist, added $5,000 to an existing reward Monday for information on the murder of former Democratic National Committee employee Seth Rich.

Burkman previously offered a $100,000 reward in addition to a $25,000 offer from Metropolitan Police, according to PR Newschannel. In August, WikiLeaks offered it's own $20,000 reward for information on Rich's murder. The extra $5,000 brings the reward total to $150,000, which is the highest reward ever offered for a murder in Washington, D.C.

On Sunday, July 10, 2016 Rich, 27, was shot in the back while walking home in the Bloomingdale neighborhood in Northwest Washington.

Rich's parents held a news conference in November to address the search for their son's killer.

"Seth believed, one, that America is absolutely great and, two, what makes America great is its people. And he believed any problem we ever had, if we would worked together as equal human beings, we could solve our problems," Rich's mother said.

"This is people coming together to solve a problem. Donna Brazille came down, and that's Seth's boss, three-levels ahead of Seth, I don't know of any boss three-levels that comes down to help," she continued. "We need the public's help, we need everybody's help, and I know Seth knew the right thing if everybody helps us, we will find these murderers and we will make that neighborhood a lot safer."

Rich's father added, "we need help. We need people who know what was going on who may know somebody, we need help from whoever can give the police some more information on what might have happened."

The incident happened shortly before Wikileaks released emails which sparked the resignation of several party leaders on the eve of the Democratic Convention.