Before the shooting at Santa Fe High School, Texas Democrats had filed about 15 bills related to gun violence, nearly all of which died when the legislative session ended past year.
The patches which will read, "Santa Fe HS", and are one of several things the team plans to do as a tribute to those affected Friday's shooting that left 10 dead at the school about 30 miles from downtown Houston. The green shirts feature the school's name in gold letters and the Astros logo in white with a gold star. Watt also stopped by Clear Lake Regional Medical Center to visit student Clay Horn.
Thursday's meeting will include students and families from the shooting at Santa Fe High School and the November 2017 attack on a rural church in Sutherland Springs, as well as Stephen Willeford, the armed "good Samaritan" who shot back at the church shooter.
After 17 people were shot dead at a Parkland, Florida high school in February, lawmakers in that southeastern state approved new, albeit limited, gun restrictions.
The governor has said he sees the roundtables as an essential step in coming up with a consensus approach to enhance school safety.
Texas's conservative and powerful lieutenant governor, Dan Patrick, suggested after the shooting that school buildings may need fewer entrances and exits, and that violent video games may be partly to blame.
Tuesday's meeting is with school administrators, law enforcement and officials with programs that arm Texas teachers.
The Santa Fe Highway 6 Ministerial Alliance says it will host "A Night of Hope and Healing" at 7 p.m. Wednesday at the Santa Fe Junior High School football stadium.
Abbott says everyone shares a "common goal - to protect innocent lives".
Abbott said those were top considerations to emerge after meeting representatives of a gun control group and gun owners as well as mental health and education experts in discussions on school safety after 10 people were killed last week in a shooting at a high school near Houston. "I think people are the problem", 16-year-old student Alex Carvey told NBC News.
Political analysts said if Abbott wanted to implement changes already floated, such as adding more metal detectors in schools and allowing for court orders to remove firearms from a person who presents a danger, he would call for a special legislative session.
His voice cracked as he described how he told police to let him inside the school so his son, Dimitrios Pagourtzis, could kill him instead. He faces murder charges. "All I can say is what I suspect as a father".
The latest school shooting is unlikely to lead to significant new gun restrictions in Texas.
The Texas Democratic Party in a statement called the roundtable meetings "theatrics" and chastised Abbott for holding the discussions behind closed doors.
Gun control groups point to the regular toll of shootings across the United States as evidence that more needs to be done to rein in the proliferation of weapons.