Murder or suicide, love or hate? am i in danger?

my sister's husband was found hanged in the garage one week after my wedding.His pijamas were folded neatly next to the wall plus my wedding photo with a small saw next to it.police is still investigating if it's bin a suicide or murder.I'm totally freaked out. donno what to do.he seemed happy and so in love with my sis.he was also very happy about my marriage.if it's been a suicide what does my wedding photo and a saw next to it mean? if it's been a murder why there is no bruises on his body? please help me. i'm so confused and scared even of my own shadow.police have said we don't have to worry..my head is exploding i can't find any meaning in what has happend. please help me out.