abu sayyaf is a militant group known for carrying out kidnappings. bombings and extortion in the south of the mainly catholic country. >>> people in ukraine are remembering the victims of one of the world's worst nuclear disaster. tuesday marks 30 years since catastrophic explosion and mel down at the chernobyl nuclear plants. sirens blared at 1:23 a.m., the exact time of the explosion inside a reactor. former plant workers and soldiers paid respects at a monument to the victims. the explosion sent a cloud of radioactive substances into the air. about 30 workers and firefighters died fm dect expore to hi levs of radiatio and pele are still dying of cancers linked to the accidents. >> translator: i am proud of those guys who were with me then and are no longer here. i am mourning. 30 years is a long time, and only a few of us are still living, more are dying every year. >> a church service was held in memory of the victims. other commemorative events include a ceremony near the plant. >>> radiation from the accident in chernobyl spread, crossing over

hundreds of members and organizations, hundreds of organizations so whether you are a member of abu sayyafness to al qaeda these are all part of the same even the shia. that's a version of jihadist him. it's the individuals that matter and therefore san bernardino abu bakr said they love to be. do they share the same ideology? this is the most important thing so individual share the idea of jihad whether it's the boston bomber's that means there are members of the same movement and that is the best label for global jihadi movement. sir in the middle right there. if you say that you haven't read a history book. the whirling dervish's and the gnostic version of islam seems attractive as non-kinetic. some of the nastiest most violent sects in the history of the religion were linked to cfius him so i'm not looking for the one antidote. i'm looking for attitudes to truth, attitudes to revelation and reason and truth and also the most important question what is that definition of where dignity and human value comes from? sufi-ism certain aspects could be injected into the mold that you are not g

john ridsdel was captured six months ago by the group abu sayyaf, which executed him after a ransom deadline passed. canadian prime minister justin trudeau condemned the killing. >> this was an act of cold-blooded murder and responsibility rests squarely with the terrorist group who took him hostage. the government of canada is committed to working with the government of the philippines and international partners to pursue those responsible for this heinous act and bring them to justice. amy: a pennsylvania appeals court has paved the way for a criminal sexual assault case against bill cosby to move forward. the court dismissed cosby's bid to have the charges thrown out in a case involving andrea constand, who says cosby drugged and assaulted her in 2004. more than 50 women have come forward to accuse cosby of sexual assaults dating back decades. an australian politician has set a river on fire to protest the gas drilling technique known as fracking. video shows green party mp jeremy buckingham leaning out of a small boat and setting the river in queensland ablaze with a lighter. >> sometime