As if a gladiator in the Roman Colosseum is asking a wild crowd to cheer him before he takes the final blow to finish off the life of this untamed beast.

The same sickness and brutality come alive at the modern stage set up by this "gladiator" of present-day Dhaka.

The only difference is, this psychotic youth, Mamunur Rashid, around twenty years of age, is appealing to a virtual “crowd” to cheer him by asking them to "subscribe" to his channel where he uploads his self-recorded video clips of animal cruelty.

The elaborate description of this disturbing footage of his criminal act against an adorable puppy can easily turn a human being sick to her or his stomach.

Unbelievably, in the footage that went viral recently, this menace to all beings is wearing a hat that says "DoG" while he records, and at the same time, instructs another youth to brutalise the puppy!

An animal rights organisation, People for Animal Welfare, took notice of the matter and filed a complaint with Savar Model Police Station. The group also swiftly moved to save the puppy, only to learn that it had already been killed.

After the killing, police raided the crime scene in Zoynabari area of Savar's Hemayetpur to serve arrest warrants against Mamun, said Sub-inspector Shah Alam, who is investigation officer of the case.

Police have found evidence of the crime, but they were yet to trace the criminals, he added.

Talking to The Daily Star, Mamun's father claimed that Mamun had gone to his grandfather's house after getting bail from the court. He, however, could not show any document.