Drive in Plantation, the complaint said.

Authorities discovered Pemberton had checked in to a hotel in Plantation on Dec. 22 and checked out the next day. On Dec. 24, records showed Pemberton was at another hotel in Tallahassee.

On Dec. 25, He was seen getting into a rideshare vehicle with an apparent soft rifle case, the complaint said.

Law enforcement stopped the vehicle and Pemberton handed over the AR-15, the Galil rifle and the pistol, along with ammunition, the complaint said.

Pemberton was interviewed by investigators and said he'd walked from Gainesville to Ocala, where he bought a pickup truck.

He said he drove to what turned out to be the former location of the organization in Plantation to  scout  the location and intended to return with the firearms concealed, the complaint said.

 When asked if Pemberton would commit a mass casualty event and then take his own life, Pemberton stated, 'Um, I really don't know if I was gonna end it with my life or not. I hadn't gotten that far yet. It entirely depended if I ended up getting caught or not. If caught, that was a way out,  the complaint said.

Pemberton told investigators the purpose of the firearms was  twofold. 

 Like I said before, sell 'em if I need 'em, but otherwise they can be used for criminal intent if I wanted to, which was my intention, such as harming another individual,  Pemberton said, according to the complaint.

Pemberton said he chose the organization for its  political influence  and location, and said his motivation was frustration with the  status quo  and  see[ing] if I could make a change,  the complaint said.

Pemberton told investigators he ultimately decided against it.

 It would have been a one-way ticket, in Plantation, I decided I wasn't ready. I gave up,  he said, according to the complaint.

Pemberton also confirmed the letter found was his goodbye letter, the complaint said.

If convicted, Pemberton faces a maximum sentence of life imprisonment on the attempted hate crime count, a mandatory consecutive sentence of up to 30 years' imprisonment on the firearm count, and up to five years' imprisonment on the possession count.