Andrew Dean, 46, from Wesham, was found in the road at the junction of Freckleton Street and the A583 Kirkham Bypass with head injuries on Thursday, July 18.
Four teenagers from Greater Manchester were arrested on suspicion of Andrew's murder.
On Saturday, July 20, three were released without charge, with a fourth, an 18-year-old man from Ashton-under-Lyne, released on bail pending further enquiries.
Today, Lancashire police confirmed that the 18 year old man had been released under investigation pending further enquiries.
The development means the teen no longer has to report to a police station by a set date, but will instead be notified at some point in the future whether or not he will face any charges.
On Monday, July 22, a GoFundMe page was established to raise money for Andrew's children.