HENRIETTE KARA was found dead on Tuesday in the kitchen of her Ramle home with stab wounds on her neck.
A week prior, she went to the police and filed a complaint about domestic violence..
Asked specifically about Christian-Muslim hostilities, few Muslims say hostilities are widespread.
In 34 of the 38 countries where the question was asked, at least half of Muslims believe that Islam is the one true religion that can lead to eternal life in heaven.
"I suppose, when the chips are down, that's the religious experience that you want to hand on to your children, regardless of what else," says Mrs Al-Yousuf.
"It is almost like there is something they recognise about each other, there is an unconscious connection there - same kind of families, same kind of faith informing how they live life," Mrs Al-Yousuf says. However, inter-faith relationships also challenge both faiths. But Mrs Al-Yousuf, who now lives in Oxfordshire, thinks this figure could be higher as there could be many more unmarried couples who choose not to marry due to the complications caused by selecting a ceremony.
When two planes hit the World Trade Centre on 9/11 in 2001, Heather Al-Yousuf says she felt sick when her husband suggested they recite the opening Sura from the Koran.
Muslims around the world agree that Islam is the one true faith that leads to salvation.
Many Muslims also say it is their religious duty to convert others to Islam.
Even in countries where a substantial proportion of the population is non-Muslim, most Muslims report that all or most of their friends also are Muslim.