Brooklyn firebug said to terrify fellow residents

He was the neighbor from hell.

Residents of a Brooklyn building where Yevgeniy Kotlyarov is accused of setting fires over three days recounted Thursday the reign of terror he visited on them stretching from last autumn to this week.

Kotlyarov’s neighbors say that besides setting two fires — one of which scorched a hallway — and scrawling graffiti accusing someone of being a “child rapist,” he glued locks, banged on doors, stole a security camera while hiding behind an umbrella and beat up a resident.

Kotlyarov, 38, was arrested Tuesday by FDNY fire marshals on multiple arson charges for setting two fires June 11 and Monday in the building on W. 5th St. near Neptune Ave. in West Brighton. He was arraigned Wednesday and ordered held on $150,000 bail.

A 70-year-old neighbor of Kotlyarov — who declined to give her name to the Daily News — says he began a conflict with her in October.

Kotlyarov banged on her door and complained about “vibrations” coming from her apartment a floor below his, the woman said. Over the next months, he glued her lock several times, banged on her door, and took a security camera she had installed, she recounted.

A video shows Kotlyarov covering his face carrying a cheerfully-hued umbrella as he yanked down the camera. A second video, taken before the theft, shows Kotlyarov agitatedly banging on her door and breathing heavily.

The woman repeatedly called building security and the police over the harassment.

Kotlyarov also harassed a second neighbor living on the fifth floor, below his apartment, that neighbor told the Daily News.

On June 11, the woman was in her apartment when she smelled smoke. She and a neighbor called 911.

Three days later, Kotlyarov allegedly set a second fire outside the woman’s apartment. This time, the woman said, her hands shook so much in fear she couldn’t use her phone to summon help.

Instead, she went to her window and screamed.

“I couldn’t imagine that in three days he would come again,” she said. “The first time I survived a little bit easier. But second time I had shock. I was screaming in my window. I couldn’t call because I became so nervous.”

The second fire outside the woman’s apartment enveloped another neighbor in smoke. This neighbor, David Y., 37, tried to escape in an elevator to escape it, but the doors wouldn’t close.

He almost passed out from the smoke — but managed to safely escape into his apartment, where his girlfriend, Julia N., 30, was waiting.

“I opened the door and suddenly everything was black,” she said.

Julia picked up her baby and dog and went into the room furthest from the entrance. She said David was coughing for days afterward. The blaze knocked out the internet to the floor, she said.

Another resident who gave his name as Paul recalled tangling with Kotlyarov in April.

Paul said he had heard a noise at his door and opened it — and saw Kotlyarov, who started calling him names and spat in his face.

Kotlyarov stalked off, and Paul said he followed him to his sixth-floor apartment, where Kotlyarov attacked him with a