In Turag, an unidentified youth was found with his throat slit at Nolvog Khalpar area on Monday.
Turag police Sub-Inspector Abu Rayhan said the youth was around 22-year-old.
A case has been filed over the body's recovery, he added.
The body was sent to Dhaka Medical College and Hospital for autopsy.
Another youth was hanging from the roof of a house at Uttarkhan Purbapara.
The man, 38-year-old Sujan, may have been murdered, Uttarkhan police SI Tariqul Islam said.
A case has been filed over the incident.
The body was sent to DMCH for a post-mortem examination.