After the April 1986 bombings claimed the lives of an additional 144 people claimed responsibility .
An additional 144 people are a previously unknown group with pro-Iraq sympathies calling themselves the 17 October Group for the Liberation of the Syrian People .
After the April 1986 bombings claimed the lives of an additional 144 people , a previously unknown group with pro-Iraq sympathies calling themselves the 17 October Group for the Liberation of the Syrian People , claimed responsibility .