Is this illegal????????

to post a picture of a wanted aulter on my facebook photo album so people can know who to look for. It's a sketch the news showed. It's a guy who groped a 10yr girl on my street..... He escaped..He also may be connected to 5 other aults in the city I live in..I already shared a link to the news video but not everybody will notice it... So I wanted to copy the whole page and crop out the picture so I can put it as a default picture. He's still loose.