Transit Police report arresting a Hyde Park man they say stole a woman's at the Harvard Square Red Line stop, then agreed to return it to her for $120 without thinking she might also have contacted the police.

According to police, the woman left her phone in the unisex restroom at Harvard Square yesterday. When she returned to look for it, it was gone. Using a friend's phone, she called her number and got no answer - but soon after got a text saying she could have her phone back for $200, police say.

The victim called her number again this time the phone was answered by a male. The victim and the unknown male negotiated a price of 120.00 for the return of the phone and the victim was given instructions on where to make the exchange.

Police continue:

Transit Police officers responded to the area where the victim was advised to make the exchange and observed the victim and [the suspect], later identified as Roggers Etienne, 23, of Hyde Park conversing. As soon as Etienne noticed the police officers he fled, at this time the victim yelled to the officers Etienne was indeed the male she spoke with and negotiated a price to return her phone. After a lengthy foot chase officers apprehended Etienne on Bow Street near Linden Street in Cambridge.

Officers then arrested him on a charge of receiving stolen property, police say.

Innocent, etc.