MILAN — A right-wing extremist suspected in the shooting rampage that wounded six Africans in central Italy was “lucid and determined, aware of what he had done” and exhibited no remorse for his actions, an Italian law enforcement official said Sunday.

Luca Traini, 28, remained jailed as police investigated him on multiple counts of attempted murder with the aggravating circumstance of “racial hatred” for the Saturday attacks in the Italian city of Macerata.

The five men and one woman were wounded in the two-hour drive-by shooting spree were from Nigeria, Ghana, Gambia and Mali, according to RAI state television.

Italian authorities said they seized Adolf Hitler’s “Mein Kampf,” other publications linked to Nazism and a flag with a Celtic cross, a symbol used by white supremacists, from Traini’s home Sunday.

Traini, who is Italian, was an unsuccessful candidate last year in a local election for the anti-migrant Northern League political party.

Italy’s ANSA news agency quoted acquaintances saying he previously had ties with the neo-fascist Forza Nuova and CasaPound parties.

Photographs released by police showed Traini with a neo-Nazi tattoo prominently on his forehead and an Italian flag tied around his neck.

Col. Michele Roberti, the Carabineri commander in Macerata, told Sky TG24 that Traini demonstrated no remorse for the two-hour rampage and “it’s likely that he carried out this crazy gesture as a sort of retaliation, a sort of vendetta” for the gruesome slaying of a teenager a few days earlier.

A Nigerian man has been arrested in the death of Pamela Mastropietro, 18. Mastropietro’s dismembered remains of were found in two suitcases days after she walked away from a drug rehab community.

Police said her bloody clothes, a receipt from a pharmacy where she bought a syringe, and knives consistent with the crime were found in the Nigerian suspect’s apartment.

One of the people wounded Saturday, a 29-year-old woman identified only as Jennifer, told Italian daily newspaper La Stampa from her hospital bed that she no longer feels free to walk around the city “with peace of mind.”

“I never hurt anyone. I was talking and laughing with three other people” when she was struck by the bullet, she told the Turin-based newspaper.

One of the six victims was treated and released Saturday. The remaining patients were all in stable condition.

The shooting spree also came amid a heated electoral campaign where anti-foreigner sentiment has become a key theme. Italy has struggled with the arrival of hundreds of thousands of migrants in the last few years coming across the Mediterranean Sea in smugglers’ boats.

Italy has a general election scheduled for March 4 and the head of the rebranded League party, Matteo Salvini, had capitalized on the teen’s killing in campaign appearances even before the shooting Saturday.

Salvini is pledging to deport 150,000 migrants in his first year in office if his party wins control of parliament.