Man Missing

Hello Lawyer/s, One bad day, I and my friend stayed in some other friends apartment,the next day I moved back to my home and he also moved from there to his house/room.the same day I am not sure he was intentionally escaped or mistakenly happened but he was escaped from there,and their relatives are started searching about him and later they registered a FIR in local police station,and telling I'm the last person who spent time along with him.later I went to police station and I explained what happened that day and I gave some written statement as well to police station.so far I wasn't know his status like where he is staying and where he went. but I'm getting hurt with this situation and police people as well .and Police people are suspecting me like I know his status but not reveling the things,but how come I spoil my life for others issue.I can tell to police people If I know the missed person status,but I don't know,because of this situation there is no joy in my life.If I know about his status I would get him into the police station. please advise . how to get solve this problem...... Thank you Satish