According to the Harris County Sheriff's Office, at about 4pm Monday, Pedro Sanchez, 21, arrived at a home in the 18600 block of Oden Trace Drive and walked in through an unlocked door. Sanchez was spotted walking up the stairs carrying a baseball bat and wearing latex gloves. He entered an upstairs bathroom where Tyler Wade, 17, was taking a shower and began attacking Wade.
Authorities say Sanchez armed himself with a knife and stabbed Wade multiple times, as Wade fought for his life.
Wade's younger sister was home at the time and witnessed the attack. She ran to a neighbor's house for help.
The neighbor grabbed a gun and ran to Wade's defense. When he confronted Sanchez and ordered him to stop the attack, Sanchez went towards the neighbor with the knife, who shot and killed him.
Both Wade and Sanchez were pronounced dead at the scene. Wade was a senior at Tomball Memorial High School.
The Harris County Sheriff's Office Homicide Unit is investigating this case.