Here are his own words from a recorded statement (court testimony is public information):
Hurley: Do you know why you are in custody?
David: Oh absolutely. Iām not trying to get away with it. I know exactly what I did. The lies are insane. People in Washington. It originates with Hillary. Honestly, day in and day out, the person on TV lying every day was (Nancy) Pelosi.
Itās [deleted word]-ing insane the crime spree the Democrats have been on, persecuting the rival campaign.
Hurley:
Do you mean the Trump campaign?
DePape:
Yes Trump. (The Democrats) go from one crime to another crime. Itās a whole [deleted word] four years. Itās unacceptable.
Hurley:
What was your intention going there (Pelosiās house)?
DePape:
Well, I was basically going to hold her hostage and talk to her. If she told the truth, Iād let her go. If she told a lie, Iād break her kneecaps.
Hurley: How did you get in?
DePape: It was not easy. There are cameras everywhere. A thousand cameras. I broke through (the glass door with a hammer) and I tried to turn the handle, and of course itās locked. I body slammed through it. I didnāt feel any pain. I was surprised. All that noise, he did not hear it. He was asleep. I told him Iām looking for Nancy Pelosi. He was like, how can we resolve this? I was like, I donāt know. Thatās when he started to do things.
This link is worth a read, very detailed information about the recorded 911 call and Depapa's recorded statements.
David DePape in court: Gavin Newsom, Hunter Biden were also targets