我听说他昨天在他所居住的那间公寓里自杀了.I've heard that she had committed suicide yesterday in her appartment where she lived。这样也可以吗？

I was told that he committed suicide yesterday in the apartment where he had been living.
表示听说通常用be told, it is said, it is rumored(传闻)。用hear（heard）语法上没有问题，但是前面两种说法更符合英文习惯。

I heard that he suicided in his own apartment yesterday.

I heard him yesterday in which he lives in the apartment committed suicide.

I heard that he killed himself in the apartment where he lived.