The way Bana Umar tells it, VOA and other broadcasters helped convince him to leave Boko Haram.
Until the night of August 18, Umar was a fighter for the Islamist radical group, living at a camp in the vast Sambisa Forest, one of the group's long-time strongholds in northeastern Nigeria.
The experience was certainly exciting. Umar says he served as a bodyguard for a commander, Abu Geidam, who he describes as very close to Abubakar Shekau, Boko Haram's best known leader.
And he saw action across Nigeria's Borno State. "I have been to war about six times," he says. "I fought in Wulari. I fought in Bita. I participated in the fighting around Chad. I was in the group that repelled Nigerian soldiers whenever they ventured into Sambisa."
But his conscience was just as active as his gun. When asked if what Boko Haram does is good and right, he says it is not, because the group attacks people "mercilessly and unjustly," and in his view, manipulates Islam to its own violent ends.
Radio prompted him to make an escape plan. Umar says he heard promises from the Nigerian chief of army staff, General Tukur Buratai, that defectors from Boko Haram would be welcomed, not punished. And he heard how Boko Haram's deadly ambushes and suicide bombings were received in the outside world.
"Many of us listened to radio stations like BBC and VOA," he says. "I listened to these radio stations frequently to the extent that when I laid down to sleep I would be thinking of what I heard. I realized that all our activities were evil. We killed. We stole. We dispossessed people of their properties in the name of religion. But what we are doing is not religion. Finally I got fed up with the group."
Umar is now in the Borno state capital, Maiduguri, after fleeing the Boko Haram camp. He described his experiences this week in an interview with VOA Hausa Service reporter Haruna Dauda. His comments, translated from Hausa, provide insight into how the militants recruit and retain fighters and are managing to survive in the face of a multi-nation offensive.
Persuaded to join, scared to leave
Umar is 27 years old and hails from Banki, a town on Nigeria's border with Cameroon. Until 2014, he made his living as a cell phone repairman and burning CDs.
But that year, Boko Haram overran the town. Umar says his friend, Abu Mujaheed, lured him into becoming a member of the group. All Nigerians are infidels, and only the followers of Abubakar Shekau are true Muslims, Mujaheed said. Join and you can fight to kill all the infidels.
Umar joined, but says he quickly got scared and wanted to run. He didn't, he says, because Abu Mujaheed told him he would be killed if he tried to escape.
Asked this week if that was true, Umar said there is no doubt about it. "Even mere rumor or allegation that someone is contemplating leaving the group would lead to the killing of the person," he says.
He says Boko Haram also discouraged defectors by telling them General Buratai’s promise of amnesty for any escapee was a ruse.
There are more than 1,000 Boko Haram members who would like to leave the group, Umar says. "There are many people that were abducted from their home towns who don’t know the way back to their places of origin. They [Boko Haram leaders] preach to such people not to leave, as if it was divine for them to be there."
He adds: "Even some original members of the sect now want to leave because soldiers have intensified the war against them unlike in the past."
All Boko Haram members must take new names when they join the group, and Bana Umar's name was changed to Abu Mustapha. He says he became a fighter, not a commander. He said the militants were living in the Jimiya section of the Sambisa Forest, which, according to him, was the headquarters for Boko Haram.
At one time, he implies, living conditions were decent. In 2014, Boko Haram ruled large parts of Borno, Yobe and Adamawa states, and could operate almost at will.
Now, he says, "Life is difficult. It is not what it used to be in the past. Food is difficult for everyone."
Some militants grow their own food, he says. "But even when you farm, your leader could take all your farm produce from you in the name of religion. You are always told that your leader has rights over all you have and yourself," he says.
Boko Haram leaders also use religion as a prod to violence, he says.
"They use religion to tell us to kill with the promise of going to paradise. Leaders quote profusely from the Quran and the sayings of the prophet [Mohammed] to support their arguments. As they explain to make us understand their own point of view as the absolute truth, we must keep saying Allah is great, Allah is great. Then we would go out to kill," he says.
A call to 'repent'
Boko Haram has killed at least 20,000 people across Nigeria, Chad, Cameroon and Niger since it launched its insurgency against the Nigerian government in 2009. Attacks and bombings continue, even though the joint task force sponsored by those countries and Benin has stripped Boko Haram of nearly all the territory it once controlled, which leader Abubakar Shekau said would form the base of a "caliphate."
With the weight of the group's deeds bearing down on him, Bana Umar felt a growing need to flee. He didn't act, however, until someone else encouraged him to believe what General Buratai promised.
He escaped on the night of August 18 with that person -- the wife of his commander, Abu Geidam. On the 20th, they turned themselves in at a Nigerian army base in Maiduguri.
Asked what he would say to Boko Haram fighters still in the Sambisa Forest, Umar says: "I am calling them to repent, especially those who want to come out but are afraid... Let people know that soldiers would not do anything to whoever voluntarily repents. I came out and no one harms me. Not one single soldier lays his hand on me."
Nigerian officials are currently debriefing Bana Umar, as they do with all Boko Haram members who leave the group voluntarily. When they finish, he will be reintegrated into Nigerian society, although not in his hometown of Banki. He will be taken to another location where he isn't known, to make a fresh start.