The imam Abdelbaki Es Satty died in the Alcanar gas explosion on 16 August, He was the driver of the van that killed 13 people on La Rambla. He initially fled the scene of the attack on La Rambla through the
Mercat de la Boqueria, then hijacked a car near the
Zona Universitària station, stabbing the driver, Pau Pérez, to death. On 21 August, police caught up with him in
Subirats, a village near Barcelona. He was wearing a fake suicide vest and shouted "Allahu Akbar" before police shot and killed him.
Houssaine Abouyaaqoub Houssaine Abouyaaqoub, aged 19, was the brother of Younes Abouyaaqoub and one of the attackers killed in Cambrils in the early hours of 18 August. He was a deliveryman for a kebab restaurant in Ripoll. Both Abouyaaqoub brothers were first cousins of Mohamed and Omar Hychami.
Moussa Oukabir Moussa Oukabir was 17 at the time of the attack. The
Fiat Talento van used in the La Rambla attack had been rented using the ID of Oukabir's brother who told police that Moussa Oukabir had stolen his ID. In 2014 and 2015, he played
futsal (a form of indoor football) for the local Ripoll youth team. In 2015, when asked on the social media website Kiwi what he would do in his first day as king of the world, he responded, "Kill the infidels and only spare Muslims who follow the religion." Moussa's brother has told the judge that Moussa had increased his prayer frequency, chided him for not spending time with Muslims only, and had told him that Muslims have to do "jihad, which implies war".
Said Aallaa Said Aallaa, 19, was born in Naour, Morocco. He had been living in Ribes de Freser, Spain, a village near Ripoll. He was shot and killed by police after the Cambrils attack.
La Vanguardia reported that Aallaa's social media contained photographs of firearms and that his religiosity was evidenced by his membership in Islamic study groups. Said had left a note in his room apologising for the harm he was about to cause.
Youssef Aallaa Aalla's death in the explosion at Alcanar was later confirmed by police from DNA at the explosion site. Like all the other suspects, Youssef was born in Morocco. Youssef was a brother of Said Aallaa. Their father said Youssef attended the mosque.
Mohamed Hychami Mohamed Hychami, aged 24 was born in Mrirt, Morocco. He was the cousin of Younes Abouyaaqoub, the driver of the van in the La Rambla attack. He was in the Audi used in the Cambrils attack and was shot and killed by police there. Hychami's mother told the media that Mohamed had said he was leaving on vacation and would return in a week.
Omar Hychami Omar Hychami was 21, and was born in Mrirt, Morocco. He was the brother of fellow attacker Mohamed Hychami, and the cousin of the Rambla van driver Younes Abouyaaqoub. He worked for an agricultural
construction sector.
Abdelbaki Es Satty Abdelbaki Es Satty was a 44-year-old imam in Ripoll who was born in Morocco in 1973 and arrived in Spain in 2002. He was convicted of drug smuggling in 2014 and was to be deported from Spain, but Es Satty claimed deportation violated his
human rights and he remained in Spain. A successful asylum application in November 2014 facilitated him moving freely in the 26 EU countries of the
Schengen area. On 21 August, he was confirmed to have died in the accidental explosion in Alcanar on 16 August. As the imam thought to have been important in radicalising the other terrorists, he has been considered the "mastermind" of the planned attacks. Es Satty had been renting a room in the house for four months. Es Satty, who had been employed as imam at the Ripoll mosque since 2015, quit "abruptly" in June. He had also stayed in Belgium for approximately three months in 2016, where he had been searching for work, including in Vilvoorde. He has been described as "unfailingly courteous and studiously discreet", betraying no radicalism in his appearance and interactions with those who did not know him, and training those in his terrorist cell to also lead double lives.
Arrests Police arrested four men in connection with the attacks. Three of the men were arrested in Ripoll: the owner of the car used in the Cambrils attack, the brother of Moussa Oukabir, and a third man. In Alcanar, 20-year-old Mohamed Houli Chemlal, who survived the Alcanar explosion, was also arrested. Mohamed Houli Chemlal and Driss Oukabir have been charged with membership of a terror organisation and murder, with Mohamed also being charged with possession of explosives. Both were found to be guilty by the
Audiencia Nacional in 2021, although being acquitted of terrorist homicide charges. By 24 August 2017, two of the suspects, Salh El Karib and Mohamed Aalla, had been released on certain conditions, including that they hand over their passports. During February 2025 trial, Mohamed Houli accused
CNI to let Abdelbaki Es Satty to form the cell. == ISIL inspiration ==