UPDATE: After speaking with police, neighbors and a property manager NBC Right Now has more information from Pasco about this developing case.
"Everything was so quick, there were no gun shots or nothing," said George Jorge Rodriguez who was interviewed by police when they arrived.
Neighbors say they live in a quiet building. People keep to themselves. They told us Montejano was just a quiet neighbor.
"There's always another side to somebody," explained Gonzalo peon.
Peon is one of Montejano's neighbors who became close with him. He offered car rides and visited the now murder suspect in his home. Peon says, whenever he visited room 219 everyone got along.
"Lupe, he's a good guy. I don't think he...I can't believe he did something like this," said Peon.
The property manager says the deceased woman, who neighbors knew as Tammy, did not live in the building. She was a visitor who had arrived last Monday with her dog. She was staying with Montejano. He was known for letting people stay over.
"They didn't have a place to stay at night, he'd let them stay the night," explained Peon.
Neighbors say Tammy was just one of those houseguests. They know she has a daughter in the Tri-Cities, but not much more than that. According to police it appears she was murdered, but the investigation is on going.
PASCO, WA - Pasco Police are reporting a homicide after finding a woman dead in a West Lewis Street apartment on Friday night.
Officers found the 46-year-old dead of "homicidal means" around 11 p.m. after receiving a report of a body at that location.
Police arrested 47-year-old Guadalupe Montejano and booked him into the Franklin county Jail for murder.