The madman who murdered six people when he plowed a car into the Waukesha Christmas parade tried to squeeze The Post for money during a bizarre jail interview.

Just two days before he was sentenced to six consecutive life terms in prison on Wednesday, Brooks hid from an iPad’s camera inside his cell in the Waukesha County jail during a video “televisit” with The Post.

With Brooks out of the frame, the camera showed a ranting man in an adjacent cell, who stared and squinted to get a look at the reporter. “Nobody’s gonna talk to you, clout chaser!” the man yelled.

After remaining silent for 15 minutes, Brooks, 40, suddenly spoke up — in the third-person — while posing as a “family friend.”

“If you wanna talk to Mr. Brooks … you’re gonna have to send a check to Mr. Brooks,” he declared.

“I would have to ask him [how much], but I’m sure it’s going to be a pretty penny. I don’t think that’s fair to him to give free interviews and he’s not getting compensated for it.

“The only thing I can say is, if you want to interview, you’re going to have to pay. You have a great day. God bless you,” he said before going silent for the remainder of the 25-minute video call.

The Post does not pay for interviews.

Later, Lt. Pierre Burgess from Waukesha County’s Jail Division reviewed the video footage and confirmed that Brooks was alone in his cell for the duration of the call. 

Monday marks the year anniversary of the horrific slaughter in Wisconsin in which Brooks mowed down more than 60 people with his Ford SUV.

During his October trial, Brooks — who represented himself — teetered between unhinged, menacing and even apologetic. At one point, Waukesha County Circuit Court Judge Jennifer Dorrow was so disturbed by his glowering, she booted him to a separate courtroom.

Brooks’ family has said Brooks has been bipolar since he was 12 years old.

Prior to the bloodshed, Brooks had called for violence against cops and white people on his social media. In rap songs he made, Brooks also reportedly called himself a “terrorist” and a “killer in the city.”

After sentencing, Brooks wept, “I want you to know that not only I am sorry for what happened, I am sorry that you cannot see what is truly in my heart and the remorse in my heart.”

Relatives of the four women, one man and 8-year-old boy he killed weren’t buying Brooks’ apologies.

“Brooks will never hold his grandson, good. My family will never get the chance to hug my mom one last time. You murdered my mom. I’m asking the judge that you should be in prison without parole,” said Marshall Sorenson, the son of Virginia Sorenson, 79.

“You have the audacity to say your conscience is clear. That is why you hear the term monster, demon,” said Chris Owen, whose mom, Leanna Owen, 71, was killed while performing with the Dancing Grannies ensemble. “I know why you did this. You did this because you weren’t in a cage … All I can ask is that you rot, and you rot slow.”