Dallas woman allegedly sets fire after being denied bathroom access, killing a man and three dogs

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Mirsa Lopez was arrested Oct. 12 for allegedly setting a mobile home on fire, killing a man and three dogs.

Dallas – A woman has been charged with arson after setting a mobile home on fire in northwest Dallas, killing a man and three dogs, according to an arrest warrant affidavit.

Dallas Fire-Rescue responded to a fire on Lombardy Lane Saturday morning that damaged four mobile homes and four cars.

The affidavit states that the woman, who had ties to one of the homeowners, started the fire after he refused to let her inside.

Mirsa Lopez told police she had a relationship with mobile home owner Gary Fisher.

Early Saturday morning, Lopez knocked on Fisher's door while he was sleeping. After Fisher told her to leave and close the door, he went back to bed. Fisher said about five minutes later he heard a loud noise and saw a fire outside.

Lopez allegedly told a neighbor that she started the fire because Fisher wouldn't let her inside to use the bathroom.

According to police, witnesses reported seeing Lopez sitting on a chair in front of the burning RV.

When questioned, Lopez admitted to intentionally starting the fire with a lighter. She told police she lit a plastic bag on fire and placed it between a car and Fisher's house.

Lopez said she was upset that Fisher refused to let her in and knew he was inside when she set the fire.

A man and three dogs died in the fire.

Lopez remains in custody at Lew Sterrett Prison.