Man, 19, indicted for murder in deadly stabbing on West Side Isaac Cantu was killed Nov. 21 in the 2900 block of West Salinas
Richard Luna (KSAT)
SAN ANTONIO – A 19-year-old man has been formally charged for his role in a fatal stabbing on the West Side late last year.
The Bexar County District Attorney’s Office said Friday that Richard Luna has been indicted for murder in the death of Isaac Cantu.
The indictment alleges that Luna, “...intentionally and knowingly caused the death of Isaac Cantu by cutting and stabbing Cantu with a deadly weapon (knife).”
The incident happened on Nov. 21, 2020, in the 2900 block of West Salinas.
Police say that Cantu had called 911 before he collapsed and was found unresponsive. He was later pronounced dead at a local hospital. Luna was arrested on Dec. 11, according to court records.
Luna is being held in the Bexar County Jail and is awaiting trial.
Related: Man, 19, arrested in connection with stabbing death on West Side, San Antonio police say
Copyright 2021 by KSAT - All rights reserved.
About the Author Jakob Rodriguez headshot
Jakob Rodriguez is a digital journalist at KSAT 12. He's a graduate of Texas State University, where he served as the editor-in-chief of the student-run newspaper, The University Star.
Here’s what the KSAT newsroom listened to in 2025 ▶ 0:56
Here’s what the KSAT newsroom listened to in 2025
‘I wouldn’t have left you’: Good Samaritan left critically injured after Universal City hit-and-run ▶ 0:32
‘I wouldn’t have left you’: Good Samaritan left critically injured after Universal City hit-and-run
Amazon’s Prime Air drone deliveries are in full swing across San Antonio ▶ 1:26
Amazon’s Prime Air drone deliveries are in full swing across San Antonio
The Running Event kicks off downtown ahead of inaugural San Antonio Marathon_Trim ▶ 1:03
The Running Event kicks off downtown ahead of inaugural San Antonio Marathon_Trim
Castle Hills nursing home resident spreads warmth with handmade hats for San Antonio’s community ▶ 1:52
Castle Hills nursing home resident spreads warmth with handmade hats for San Antonio’s community
San Antonio could test drive lower speed limits, but funding issues may push it down the road ▶ 0:57
San Antonio could test drive lower speed limits, but funding issues may push it down the road
Body cam captures LOPD officer making false claims about business owner months before owner’s arrest ▶ 1:03
Body cam captures LOPD officer making false claims about business owner months before owner’s arrest
Road closures to be aware of during the San Antonio Marathon ▶ 1:55
Road closures to be aware of during the San Antonio Marathon
Mother of Texas A&M student demands answers after daughter’s fatal fall from high-rise in Austin ▶ 2:07
Mother of Texas A&M student demands answers after daughter’s fatal fall from high-rise in Austin
Do police have to wait 24 hours to declare an adult missing? ▶ 2:20
Do police have to wait 24 hours to declare an adult missing?
Harlandale ISD teacher arrested, accused of sexual assault of child, SAPD says ▶ 1:05
Harlandale ISD teacher arrested, accused of sexual assault of child, SAPD says
Mother questions circumstances surrounding death of daughter, a Texas A&M student, in Austin ▶ 1:03
Mother questions circumstances surrounding death of daughter, a Texas A&M student, in Austin
Ousted Alamo Trust president questions timing of resignation request ▶ 1:13
Ousted Alamo Trust president questions timing of resignation request
Prepare to pay a $45 fee to fly if you don't have a Real ID ▶ 0:35
Prepare to pay a $45 fee to fly if you don't have a Real ID
Some UTSA students forced to move dorm rooms as school complies with state’s ‘bathroom bill’ ▶ 1:08
Some UTSA students forced to move dorm rooms as school complies with state’s ‘bathroom bill’
How to share your San Antonio Marathon pics & videos to KSAT Connect ▶ 0:29
How to share your San Antonio Marathon pics & videos to KSAT Connect
How Black Friday can make the economy seem healthier than it is ▶ 1:18
How Black Friday can make the economy seem healthier than it is
Interactive map shows car burglaries at popular San Antonio shopping centers ▶ 0:32
Interactive map shows car burglaries at popular San Antonio shopping centers
Experience San Antonio’s newest drive-thru Christmas light display “The Light Park” at Wolff Stadium ▶ 1:04
Experience San Antonio’s newest drive-thru Christmas light display “The Light Park” at Wolff Stadium
1-on-1 with Colin Allred, candidate for US Senate ▶ 0:41
1-on-1 with Colin Allred, candidate for US Senate
James Talarico shares his favorite things about Texas ▶ 1:48
James Talarico shares his favorite things about Texas
David Elder tries entrees, drinks and desserts at Salsita at the Rim ▶ 1:29
David Elder tries entrees, drinks and desserts at Salsita at the Rim
David Elder tries the Tres Leches Strawberry Matcha Latte from La Panaderia ▶ 0:54
David Elder tries the Tres Leches Strawberry Matcha Latte from La Panaderia
David Elder tries Snow Island in San Antonio ▶ 2:51
David Elder tries Snow Island in San Antonio
Surf & Turf at Sea Island Shrimp House ▶ 0:39
Surf & Turf at Sea Island Shrimp House
Previous photo Next photo