Possible Solutions

Yanna helped Mrs. Grecia to sit down. She sobbed and sobbed and sobbed.
After the crying, Yanna finally asked her.
"What happened?"
Mrs. Grecia looked at her and started talking. Yanna touched her glasses, which hid a button. That button was used to turn a mic from the eyeglasses on and it instantly recorded on Joshua's computer. "It's my new invention!" Joshua smiled (of course, he was still big then).
"Yesterday, I came home from work. I work in a store as a saleslady and come home everynight at about 12 a.m. since my shift ends at 10. After that, I eat my dinner and go home. I came back home and I saw my sister crying over a dead body..." She choked with tears. "My husband..."
Yanna listened to her and pressed the button on her glasses. She told her, "Don't worry, my friends and I will figure this out. Can you please keep this a secret from the police?"
The woman smiled at her with tears. "Okay."
Yanna asked her once more, "Where is the room you found your sister and your husband?"
"It's the room at the end of the corridor."
"Thank you very much."

She walked from the room to the room the woman told her. She caught sight of the others at another room, interviewing what seemed to be the Mrs. Grecia's sister. Joshua wasn't there.
He must have slipped from them to his computer.
She walked to the room and smelled something fresh.
"Flowers," a young voice suddenly exclaimed. She looked and was surprised to see Joshua.
An outline of a body by tape was left on the floor. It showed a young man curled up like he was squeezed inside a small space.
Joshua looked at her and said, "I have been listening to your conversation with Mrs. Grecia."
Yanna just couldn't believe that a young kid would talk like that.
"I was also listening to the sister's statement. She said she went to a party with her friends. Nicah and Jem have this feeling she did it, and I do too. But it's almost imposible. Jasper called her friends and each said the same thing. She said she had a phone call. She told them to wait for her for ten minutes. After that, she came back and they continued the party."
Yanna replied, "That seems weird. Let us try to find out if she could have gone from the party to this house and back, within ten minutes." Yanna eyed the surroundings, without taking a step. Joshua walked towards her to go out the door. Suddenly, Yanna said "No!" and held Joshua by the shirt. She pointed at a small portion of carpet overturned just near the door.
Jem came in with her camera. "What's worth picturing?"
Yanna pointed at the portion of carpet. "That."
The camera the police had given her had flashed and clicked. Click! Click! She shot the taped outline.
Jem asked, "Why are you carrying Joshua with his shirt."
Joshua was mad. "You coud have just told me to stop before I hit it."
Yanna apologized while laughing. "Well... Okay! Let's get back to the car. Jasper and Nicah are there, right?" She looked at Jem.
Jem nodded.

Nicah decided, "We are all gonna try to figure out if the sister, Becky, could have done it. We're going there now."
Jasper said, "Yes. We suspect her because she keeps on denying and was furious. Somehow, I could tell in her eyes, that she was lying. Our list of suspects, Mrs. Grecia, Becky, and the maid. The housemaid is also a likely suspect, Nicah interviewed her. But all we got was that Mrs. Grecia came home at 12 a.m. Becky came home at 11:50. She cried because Mrs. Grecia and Becky suspected her but I could tell she was innocent."
Jem told him, "Wow. For such chinky eyes you could see if others are lying or not."
And for the first time after he shrunk, Joshua laughed with the others.

After 10 mins., they arrived at the place of the party. It was a decent place. Yanna held a stopwatch as Jasper went out of the car and put on his white band, holding a stopwatch himself. He was gonna race the car to the house, but more importantly, he was gonna beat 10 mins.
She shouted, "Ready...Set... GO!"
And cars screeched and Jasper ran and turned left to the subway station. Jasper took the subway, stole a bike, stopped at an intersection, got a Jollibee Pocket Pie from his pocket, and ran all the way to the house.

Jasper stopped the watch. 9 mins. 14 seconds. He breathed heavily.
The car arrived with the others 30 seconds later.
Jasper shouted at them, "9 MINS. 14 SECONDS!"
Jem went out of the car and looked at Jasper's stopwatch. The others went after her.
Jasper said "Yes! I told you she could have done it!"
Joshua replied, "I'm sorry Jaz. But after 9 mins. 14 seconds, she couldn't have time to do the murder and return to the party on time."
Jasper frowned, "Oh man!"
Nicah said, "Back to the old drawing board."