Updated at 2:18 p.m.
Authorities have identified the man whose on Tuesday.
The deceased is Cameron Raudonis-Blicker, 23, of Derry, N.H., according to Cara O'Brien, a spokeswoman for the Middlesex District Attorney's Office.
O'Brien said officials are still waiting for autopsy results to determine the cause of death. No further information is available at this time, she added.
Chief Fred Ryan, of the , on Tuesday said the, which had hampered the identification process.
Ryan added there was no clear sign of trauma. Raudonis-Blicker was found unclothed, police said.
On Thursday, Capt. Richard Flynn said officers found the man's clothes at the banks of Spy Pond near Linwood Street. They found his identification and called the Derry Police Department.
Officers in New Hampshire said they had interacted with Raudonis-Blicker in the past, and had "information with regards to tattoos that matched up," Flynn added.
Arlington police officers also found a car registered to the man, which they eventually found on Pleasant Street, according to the captain.
Flynn said dental records were sent to the Office of the Chief Medical Examiner late Wednesday afternoon, confirming Raudonis-Blicker's identity.
Capt. Vernon Thomas, of the Darren Police Department, said all questions will be routed through the Arlington Police Department. He added he could not comment about whether there was a missing person's report for Raudonis-Blicker or how long he was missing.
Joe Schanda, club manager at , said one of his employees came in to open the bar about 3 p.m., walked outside and saw the body in the water. He called 911 and was later sent home, though he is reportedly “doing alright.”
—Check back on Arlington Patch for updates as this story develops.