An stalker hacked two people as they protested his stalking in Baliar Mour area in Phulpur upazila on Friday night.
The victims are Sumon Mia, 20, and his uncle Rafiqul Islam, 40, of Deo village.
AKM Mahbub Alam, officer-in-charge of Phulpur Police Station, said trader Sohel Mia, 30, of the same locality used to stalk a sixth grader madrasa girl on her way to the institution for long.
Sumon along with local people protested the stalking on various occasions. As Sohel stalked the girl again, village people assaulted him on April 12.
As Sohel sought pardon for his act, the villagers let him go, warning him not to do it again in future, said the OC.
Angered by the incident, Sohel allegedly attacked Sumon, a cousin of the girl, with a sharp weapon when he was returning home from a local bazar around 9:00pm on Friday.
When Rafiqul rushed to the spot to save Sumon, the attacker also hacked him and fled the scene, said the police official.