UPDATE: June 11 at 2:30 p.m.
Chelsy Alyce Mistretta (08/18/1997) was arrested in connection to a murder at the Village on Telluride apartments.
She is the third person to be charged for the crime on June 5. She was arrested in Bryan, Texas after investigators found she was in the vehicle with Lapear Willrich and Jon Jervis on the day of the murder.
San Marcos police detectives are awaiting the extradition of Mistretta to Hays County.

 
UPDATE: June 20 at 3:21 p.m.
SMPD officers have arrested Jon Hunter Jervis, 23, and Lapear O’Neal Willrich, 25, in connection with the murder of Demarcus Trey Allen, 23, that occurred June 5 at the Village on Telluride Apartments.
Officers and investigators were able to utilize surveillance footage captured by a video camera inside the apartment of the crime scene to identify both Jervis and Willrich. Additional video footage and witness statements led officers to identify the 1994 to 1996 Cadillac Deville used by the offenders.
On June 18, the SMPD Criminal Investigation Unit received information that a Cadillac Deville, similar to the one captured by surveillance footage, was registered to a resident of Giddings, Texas and listed for sale. Moreover, SMPD gleaned knowledge that Jervis and the vehicle had been involved in an earlier arrest made by the Brian Police Department. Jervis was already incarcerated in the Brazos County Jail at the time that SMPD gathered this knowledge.
SMPD traveled to the Brazos County Jail where officers learned about a healing gunshot wound that Jervis sustained during the June 5 murder of Allen. Hays County Justice of the Peace Maggie H. Moreno issued an arrest warrant for Capital Murder. The warrant was served, and Jervis now awaits extradition.

On June 19, investigators identified Willrich, a resident of Giddings — where the vehicle was registered — as the second offender in the homicide. Moreno issued a Capital Murder arrest warrant, and Willrich was arrested by SMPD. Willrich, who also had been healing from a gunshot wound in connection to the June 5 homicide, was transported to the Hays County Jail.
 

The San Marcos Police Department arrived at The Village apartment complex, 201 Telluride St, San Marcos, TX 78666, and found Demarcus Trey Allen, 23, deceased after apparent gunshot wounds.
On Wednesday, June 5, a resident of The Village on Telluride reported a burglary to authorities after finding a loose dog and following it to an apartment on the property. Officers arrived on the scene shortly after and found Allen wounded inside of the apartment. Justice of the Peace Maggie H. Moreno pronounced Allen dead at the scene at 8:40 a.m. Next of kin was notified.
Two individuals at the apartment when officers arrived and a roommate are being interviewed by the SMPD Criminal Investigation Division.
This is the fifth homicide investigated by SMPD this year.